122111020020 has 48 divisors (see below), whose sum is σ = 372993663168. Its totient is φ = 29602671360.

The previous prime is 122111020007. The next prime is 122111020039. The reversal of 122111020020 is 20020111221.

It is a super-2 number, since 2×122111020020² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 122111019978 and 122111020005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92507689 + ... + 92509008.

It is an arithmetic number, because the mean of its divisors is an integer number (7770701316).

Almost surely, 2^122111020020 is an apocalyptic number.

122111020020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122111020020 is an abundant number, since it is smaller than the sum of its proper divisors (250882643148).

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

122111020020 is a wasteful number, since it uses less digits than its factorization.

122111020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185016720 (or 185016718 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 122111020020 its reverse (20020111221), we get a palindrome (142131131241).

The spelling of 122111020020 in words is "one hundred twenty-two billion, one hundred eleven million, twenty thousand, twenty".