12001113121122 has 96 divisors (see below), whose sum is σ = 26376301486080. Its totient is φ = 3943028475360.

The previous prime is 12001113121031. The next prime is 12001113121141. The reversal of 12001113121122 is 22112131110021.

It is a happy number.

12001113121122 is a `hidden beast` number, since 120 + 0 + 111 + 312 + 1 + 122 = 666.

It is a super-2 number, since 2×12001113121122² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12001113121095 and 12001113121104.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2627786883 + ... + 2627791449.

It is an arithmetic number, because the mean of its divisors is an integer number (274753140480).

Almost surely, 2^{12001113121122} is an apocalyptic number.

12001113121122 is an abundant number, since it is smaller than the sum of its proper divisors (14375188364958).

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

12001113121122 is a wasteful number, since it uses less digits than its factorization.

12001113121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7388 (or 7385 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 12001113121122 its reverse (22112131110021), we get a palindrome (34113244231143).

The spelling of 12001113121122 in words is "twelve trillion, one billion, one hundred thirteen million, one hundred twenty-one thousand, one hundred twenty-two".