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122110210020 = 22355531367957
BaseRepresentation
bin111000110111001010…
…1011110111111100100
3102200012001220101110010
41301232111132333210
54000040203210040
6132032513330220
711552001442131
oct1615625367744
9380161811403
10122110210020
1147872037147
121b7ba566970
13b69043b556
145ca56cd588
15329a387e80
hex1c6e55efe4

122110210020 has 48 divisors (see below), whose sum is σ = 341971334208. Its totient is φ = 32556746880.

The previous prime is 122110209979. The next prime is 122110210049. The reversal of 122110210020 is 20012011221.

It is a super-2 number, since 2×1221102100202 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 122110209978 and 122110210005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147882 + ... + 515838.

It is an arithmetic number, because the mean of its divisors is an integer number (7124402796).

Almost surely, 2122110210020 is an apocalyptic number.

122110210020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122110210020 is an abundant number, since it is smaller than the sum of its proper divisors (219861124188).

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

122110210020 is a wasteful number, since it uses less digits than its factorization.

122110210020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373500 (or 373498 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 122110210020 its reverse (20012011221), we get a palindrome (142122221241).

The spelling of 122110210020 in words is "one hundred twenty-two billion, one hundred ten million, two hundred ten thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 5531 11062 16593 22124 27655 33186 55310 66372 82965 110620 165930 331860 367957 735914 1103871 1471828 1839785 2207742 3679570 4415484 5519355 7359140 11038710 22077420 2035170167 4070340334 6105510501 8140680668 10175850835 12211021002 20351701670 24422042004 30527552505 40703403340 61055105010 122110210020