111002220021210 has 128 divisors (see below), whose sum is σ = 304933630869504. Its totient is φ = 25332758872320.

The previous prime is 111002220021197. The next prime is 111002220021223. The reversal of 111002220021210 is 12120022200111.

It is an interprime number because it is at equal distance from previous prime (111002220021197) and next prime (111002220021223).

It is a super-2 number, since 2×111002220021210² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 111002220021210.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 474886987 + ... + 475120673.

It is an arithmetic number, because the mean of its divisors is an integer number (2382293991168).

Almost surely, 2^{111002220021210} is an apocalyptic number.

111002220021210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111002220021210 is an abundant number, since it is smaller than the sum of its proper divisors (193931410848294).

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

111002220021210 is a wasteful number, since it uses less digits than its factorization.

111002220021210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237188.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 111002220021210 its reverse (12120022200111), we get a palindrome (123122242221321).

The spelling of 111002220021210 in words is "one hundred eleven trillion, two billion, two hundred twenty million, twenty-one thousand, two hundred ten".