11221112122110 has 96 divisors (see below), whose sum is σ = 31828434648192. Its totient is φ = 2720160181440.

The previous prime is 11221112122097. The next prime is 11221112122123. The reversal of 11221112122110 is 1122121112211.

It is a happy number.

11221112122110 is a `hidden beast` number, since 11 + 221 + 11 + 212 + 211 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (11221112122097) and next prime (11221112122123).

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

It is a congruent number.

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, 25908357 + ... + 26337903.

It is an arithmetic number, because the mean of its divisors is an integer number (331546194252).

Almost surely, 2^{11221112122110} is an apocalyptic number.

11221112122110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11221112122110 is an abundant number, since it is smaller than the sum of its proper divisors (20607322526082).

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

11221112122110 is a wasteful number, since it uses less digits than its factorization.

11221112122110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455958 (or 455955 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 11221112122110 its reverse (1122121112211), we get a palindrome (12343233234321).

The spelling of 11221112122110 in words is "eleven trillion, two hundred twenty-one billion, one hundred twelve million, one hundred twenty-two thousand, one hundred ten".