122112221110110 has 640 divisors, whose sum is σ = 415652866523136. Its totient is φ = 24984651605760.

The previous prime is 122112221110049. The next prime is 122112221110163. The reversal of 122112221110110 is 11011122211221.

It is a happy number.

122112221110110 is a `hidden beast` number, since 1 + 221 + 1 + 2 + 221 + 110 + 110 = 666.

It is a super-2 number, since 2×122112221110110² (a number of 29 digits) contains 22 as substring.

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 319 ways as a sum of consecutive naturals, for example, 13234223317 + ... + 13234232543.

Almost surely, 2^{122112221110110} is an apocalyptic number.

122112221110110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 122112221110110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207826433261568).

122112221110110 is an abundant number, since it is smaller than the sum of its proper divisors (293540645413026).

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

122112221110110 is a wasteful number, since it uses less digits than its factorization.

122112221110110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12498 (or 12489 counting only the distinct ones).

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

Adding to 122112221110110 its reverse (11011122211221), we get a palindrome (133123343321331).

The spelling of 122112221110110 in words is "one hundred twenty-two trillion, one hundred twelve billion, two hundred twenty-one million, one hundred ten thousand, one hundred ten".