122111120012220 has 144 divisors (see below), whose sum is σ = 374080478754528. Its totient is φ = 32239750924800.

The previous prime is 122111120012113. The next prime is 122111120012237. The reversal of 122111120012220 is 22210021111221.

122111120012220 is a `hidden beast` number, since 1 + 221 + 1 + 11 + 200 + 12 + 220 = 666.

It is a super-2 number, since 2×122111120012220² (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 junction number, because it is equal to n+sod(n) for n = 122111120012193 and 122111120012202.

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, 1176503167 + ... + 1176606953.

It is an arithmetic number, because the mean of its divisors is an integer number (2597781102462).

Almost surely, 2^{122111120012220} is an apocalyptic number.

122111120012220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122111120012220 is an abundant number, since it is smaller than the sum of its proper divisors (251969358742308).

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

122111120012220 is a wasteful number, since it uses less digits than its factorization.

122111120012220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168620 (or 168615 counting only the distinct ones).

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

Adding to 122111120012220 its reverse (22210021111221), we get a palindrome (144321141123441).

The spelling of 122111120012220 in words is "one hundred twenty-two trillion, one hundred eleven billion, one hundred twenty million, twelve thousand, two hundred twenty".