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20122110120121 = 1277101183155731
BaseRepresentation
bin1001001001101000010110…
…01110011101000010111001
32122020122200110012022210021
410210310023032131002321
510114140040142320441
6110443545245450441
74144526434640662
oct444641316350271
978218613168707
1020122110120121
116458814642689
12230b971b70a21
13b2c6786c0399
144d7cb5926369
1524d6502023d1
hex124d0b39d0b9

20122110120121 has 8 divisors (see below), whose sum is σ = 20138195787264. Its totient is φ = 20106024969360.

The previous prime is 20122110120097. The next prime is 20122110120137. The reversal of 20122110120121 is 12102101122102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20122110120121 - 227 = 20121975902393 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20122110120095 and 20122110120104.

It is not an unprimeable number, because it can be changed into a prime (20122110123121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129132826 + ... + 129288556.

It is an arithmetic number, because the mean of its divisors is an integer number (2517274473408).

Almost surely, 220122110120121 is an apocalyptic number.

It is an amenable number.

20122110120121 is a deficient number, since it is larger than the sum of its proper divisors (16085667143).

20122110120121 is a wasteful number, since it uses less digits than its factorization.

20122110120121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258191.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20122110120121 its reverse (12102101122102), we get a palindrome (32224211242223).

The spelling of 20122110120121 in words is "twenty trillion, one hundred twenty-two billion, one hundred ten million, one hundred twenty thousand, one hundred twenty-one".

Divisors: 1 1277 101183 155731 129210691 198868487 15757329773 20122110120121