111002200121121 has 32 divisors (see below), whose sum is σ = 152104481760000. Its totient is φ = 71953378873344.

The previous prime is 111002200121083. The next prime is 111002200121317. The reversal of 111002200121121 is 121121002200111.

It is a happy number.

It is not a de Polignac number, because 111002200121121 - 2⁷ = 111002200120993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111002200121121.

It is not an unprimeable number, because it can be changed into a prime (111002200921121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1057121380 + ... + 1057226378.

It is an arithmetic number, because the mean of its divisors is an integer number (4753265055000).

Almost surely, 2^{111002200121121} is an apocalyptic number.

It is an amenable number.

111002200121121 is a deficient number, since it is larger than the sum of its proper divisors (41102281638879).

111002200121121 is a wasteful number, since it uses less digits than its factorization.

111002200121121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111305.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 111002200121121 its reverse (121121002200111), we get a palindrome (232123202321232).

The spelling of 111002200121121 in words is "one hundred eleven trillion, two billion, two hundred million, one hundred twenty-one thousand, one hundred twenty-one".