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2122121032031 = 7111317124705943
BaseRepresentation
bin11110111000011000010…
…001010011000101011111
321111212120021010001102102
4132320120101103011133
5234232100441011111
64302520002315315
7306214065102230
oct36703021230537
97455507101372
102122121032031
11748a93aa9740
122a3346058b3b
13125165cc1680
14749d5799087
153a3042a213b
hex1ee1845315f

2122121032031 has 32 divisors (see below), whose sum is σ = 3016886197248. Its totient is φ = 1436612451840.

The previous prime is 2122121031977. The next prime is 2122121032033. The reversal of 2122121032031 is 1302301212212.

It is a cyclic number.

It is not a de Polignac number, because 2122121032031 - 210 = 2122121031007 is a prime.

It is a super-2 number, since 2×21221210320312 (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2122121031994 and 2122121032012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122121032033) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62335955 + ... + 62369988.

It is an arithmetic number, because the mean of its divisors is an integer number (94277693664).

Almost surely, 22122121032031 is an apocalyptic number.

2122121032031 is a deficient number, since it is larger than the sum of its proper divisors (894765165217).

2122121032031 is a wasteful number, since it uses less digits than its factorization.

2122121032031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124705991.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 2122121032031 its reverse (1302301212212), we get a palindrome (3424422244243).

The spelling of 2122121032031 in words is "two trillion, one hundred twenty-two billion, one hundred twenty-one million, thirty-two thousand, thirty-one".

Divisors: 1 7 11 13 17 77 91 119 143 187 221 1001 1309 1547 2431 17017 124705943 872941601 1371765373 1621177259 2120001031 9602357611 11348240813 14840007217 17832949849 23320011341 27560013403 124830648943 163240079387 192920093821 303160147433 2122121032031