111002210121 has 32 divisors (see below), whose sum is σ = 169677877248. Its totient is φ = 63933589440.

The previous prime is 111002210087. The next prime is 111002210161. The reversal of 111002210121 is 121012200111.

It is not a de Polignac number, because 111002210121 - 2⁷ = 111002209993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111002210097 and 111002210106.

It is not an unprimeable number, because it can be changed into a prime (111002210161) 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, 1004601 + ... + 1109606.

It is an arithmetic number, because the mean of its divisors is an integer number (5302433664).

Almost surely, 2^111002210121 is an apocalyptic number.

111002210121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111002210121 is a deficient number, since it is larger than the sum of its proper divisors (58675667127).

111002210121 is a wasteful number, since it uses less digits than its factorization.

111002210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2114301.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 111002210121 its reverse (121012200111), we get a palindrome (232014410232).

It can be divided in two parts, 111002 and 210121, that added together give a palindrome (321123).

The spelling of 111002210121 in words is "one hundred eleven billion, two million, two hundred ten thousand, one hundred twenty-one".