122011111020 has 24 divisors (see below), whose sum is σ = 341631111024. Its totient is φ = 32536296256.

The previous prime is 122011110989. The next prime is 122011111051. The reversal of 122011111020 is 20111110221.

It is an interprime number because it is at equal distance from previous prime (122011110989) and next prime (122011111051).

It is a super-2 number, since 2×122011111020² (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 = 122011110987 and 122011111005.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1016759199 + ... + 1016759318.

It is an arithmetic number, because the mean of its divisors is an integer number (14234629626).

Almost surely, 2^122011111020 is an apocalyptic number.

122011111020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122011111020 is an abundant number, since it is smaller than the sum of its proper divisors (219620000004).

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

122011111020 is a wasteful number, since it uses less digits than its factorization.

122011111020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2033518529 (or 2033518527 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 122011111020 its reverse (20111110221), we get a palindrome (142122221241).

The spelling of 122011111020 in words is "one hundred twenty-two billion, eleven million, one hundred eleven thousand, twenty".