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20121020110022 = 2135772747948809
BaseRepresentation
bin1001001001100110010100…
…10000011001010011000110
32122020112212111011002000212
410210303022100121103012
510114130322122010042
6110443245151035422
74144460431002656
oct444631220312306
978215774132025
1020121020110022
116458305330997
12230b708b0bb72
13b2c5339297b0
144d7c10c68366
1524d5d9691482
hex124cca4194c6

20121020110022 has 32 divisors (see below), whose sum is σ = 32561369668800. Its totient is φ = 9270002700288.

The previous prime is 20121020110007. The next prime is 20121020110073. The reversal of 20121020110022 is 22001102012102.

It is a junction number, because it is equal to n+sod(n) for n = 20121020109979 and 20121020110006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 412215554 + ... + 412264362.

It is an arithmetic number, because the mean of its divisors is an integer number (1017542802150).

Almost surely, 220121020110022 is an apocalyptic number.

20121020110022 is a deficient number, since it is larger than the sum of its proper divisors (12440349558778).

20121020110022 is a wasteful number, since it uses less digits than its factorization.

20121020110022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76880.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20121020110022 its reverse (22001102012102), we get a palindrome (42122122122124).

The spelling of 20121020110022 in words is "twenty trillion, one hundred twenty-one billion, twenty million, one hundred ten thousand, twenty-two".

Divisors: 1 2 13 26 577 1154 7501 15002 27479 48809 54958 97618 357227 634517 714454 1269034 15855383 28162793 31710766 56325586 206119979 366116309 412239958 732232618 1341222511 2682445022 17435892643 34871785286 773885388847 1547770777694 10060510055011 20121020110022