122111021020 has 12 divisors (see below), whose sum is σ = 256433144184. Its totient is φ = 48844408400.

The previous prime is 122111020957. The next prime is 122111021023. The reversal of 122111021020 is 20120111221.

It is a super-2 number, since 2×122111021020² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122111021023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3052775506 + ... + 3052775545.

It is an arithmetic number, because the mean of its divisors is an integer number (21369428682).

Almost surely, 2^122111021020 is an apocalyptic number.

122111021020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122111021020 is an abundant number, since it is smaller than the sum of its proper divisors (134322123164).

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

122111021020 is a wasteful number, since it uses less digits than its factorization.

122111021020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6105551060 (or 6105551058 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 122111021020 its reverse (20120111221), we get a palindrome (142231132241).

The spelling of 122111021020 in words is "one hundred twenty-two billion, one hundred eleven million, twenty-one thousand, twenty".