122221111120 has 40 divisors (see below), whose sum is σ = 284683680864. Its totient is φ = 48799051392.

The previous prime is 122221111093. The next prime is 122221111127. The reversal of 122221111120 is 21111122221.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 122221111094 and 122221111103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122221111127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1352734 + ... + 1440253.

Almost surely, 2^122221111120 is an apocalyptic number.

122221111120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122221111120 is an abundant number, since it is smaller than the sum of its proper divisors (162462569744).

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

122221111120 is a wasteful number, since it uses less digits than its factorization.

122221111120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2793547 (or 2793541 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 122221111120 its reverse (21111122221), we get a palindrome (143332233341).

The spelling of 122221111120 in words is "one hundred twenty-two billion, two hundred twenty-one million, one hundred eleven thousand, one hundred twenty".