122120110111110 has 64 divisors (see below), whose sum is σ = 299458962468864. Its totient is φ = 31858131312000.

The previous prime is 122120110111091. The next prime is 122120110111121. The reversal of 122120110111110 is 11111011021221.

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 122120110111110.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16366366 + ... + 22629585.

It is an arithmetic number, because the mean of its divisors is an integer number (4679046288576).

Almost surely, 2^{122120110111110} is an apocalyptic number.

122120110111110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122120110111110 is an abundant number, since it is smaller than the sum of its proper divisors (177338852357754).

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

122120110111110 is a wasteful number, since it uses less digits than its factorization.

122120110111110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38998229.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 122120110111110 its reverse (11111011021221), we get a palindrome (133231121132331).

The spelling of 122120110111110 in words is "one hundred twenty-two trillion, one hundred twenty billion, one hundred ten million, one hundred eleven thousand, one hundred ten".