121102115540004 has 72 divisors (see below), whose sum is σ = 307231895338368. Its totient is φ = 40220654760000.

The previous prime is 121102115539963. The next prime is 121102115540053. The reversal of 121102115540004 is 400045511201121.

121102115540004 is a `hidden beast` number, since 1 + 2 + 1 + 1 + 0 + 2 + 115 + 540 + 0 + 0 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 121102115540004.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 486020419 + ... + 486269525.

Almost surely, 2^{121102115540004} is an apocalyptic number.

It is an amenable number.

121102115540004 is an abundant number, since it is smaller than the sum of its proper divisors (186129779798364).

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

121102115540004 is a wasteful number, since it uses less digits than its factorization.

121102115540004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298145 (or 298140 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 27.

Adding to 121102115540004 its reverse (400045511201121), we get a palindrome (521147626741125).

The spelling of 121102115540004 in words is "one hundred twenty-one trillion, one hundred two billion, one hundred fifteen million, five hundred forty thousand, four".