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2122011120220 = 2253118311869251
BaseRepresentation
bin11110111000010001101…
…110000001001001011100
321111212021121021221202121
4132320101232001021130
5234231334321321340
64302501034432324
7306211261625515
oct36702156011134
97455247257677
102122011120220
11748a37a58332
122a33152926a4
131251492ba4b4
14749c4d47a0c
153a2e97e094a
hex1ee11b8125c

2122011120220 has 48 divisors (see below), whose sum is σ = 4602487228416. Its totient is φ = 820974600000.

The previous prime is 2122011120209. The next prime is 2122011120227. The reversal of 2122011120220 is 220211102212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2122011120194 and 2122011120203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122011120227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 200595 + ... + 2069845.

It is an arithmetic number, because the mean of its divisors is an integer number (95885150592).

Almost surely, 22122011120220 is an apocalyptic number.

2122011120220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2122011120220 is an abundant number, since it is smaller than the sum of its proper divisors (2480476108196).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2122011120220 is a wasteful number, since it uses less digits than its factorization.

2122011120220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1871122 (or 1871120 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2122011120220 its reverse (220211102212), we get a palindrome (2342222222432).

The spelling of 2122011120220 in words is "two trillion, one hundred twenty-two billion, eleven million, one hundred twenty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 1831 3662 7324 9155 18310 36620 56761 113522 227044 283805 567610 1135220 1869251 3738502 7477004 9346255 18692510 37385020 57946781 115893562 231787124 289733905 579467810 1158935620 3422598581 6845197162 13690394324 17112992905 34225985810 68451971620 106100556011 212201112022 424402224044 530502780055 1061005560110 2122011120220