122021220011112 has 160 divisors (see below), whose sum is σ = 343587758976000. Its totient is φ = 40457729404800.

The previous prime is 122021220011101. The next prime is 122021220011153. The reversal of 122021220011112 is 211110022120221.

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

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2127667014 + ... + 2127724362.

It is an arithmetic number, because the mean of its divisors is an integer number (2147423493600).

Almost surely, 2^{122021220011112} is an apocalyptic number.

122021220011112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122021220011112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171793879488000).

122021220011112 is an abundant number, since it is smaller than the sum of its proper divisors (221566538964888).

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

122021220011112 is a wasteful number, since it uses less digits than its factorization.

122021220011112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74749 (or 74736 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 122021220011112 its reverse (211110022120221), we get a palindrome (333131242131333).

The spelling of 122021220011112 in words is "one hundred twenty-two trillion, twenty-one billion, two hundred twenty million, eleven thousand, one hundred twelve".