20000121003112 has 8 divisors (see below), whose sum is σ = 37500226880850. Its totient is φ = 10000060501552.

The previous prime is 20000121003097. The next prime is 20000121003133. The reversal of 20000121003112 is 21130012100002.

It can be written as a sum of positive squares in only one way, i.e., 16670350048356 + 3329770954756 = 4082934^2 + 1824766^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×20000121003112² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20000121003092 and 20000121003101.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1250007562687 + ... + 1250007562702.

Almost surely, 2^{20000121003112} is an apocalyptic number.

It is an amenable number.

20000121003112 is a deficient number, since it is larger than the sum of its proper divisors (17500105877738).

20000121003112 is a wasteful number, since it uses less digits than its factorization.

20000121003112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2500015125395 (or 2500015125391 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 20000121003112 its reverse (21130012100002), we get a palindrome (41130133103114).

The spelling of 20000121003112 in words is "twenty trillion, one hundred twenty-one million, three thousand, one hundred twelve".