122111211020 has 24 divisors (see below), whose sum is σ = 262688021568. Its totient is φ = 47653155200.

The previous prime is 122111211007. The next prime is 122111211023. The reversal of 122111211020 is 20112111221.

It is a super-2 number, since 2×122111211020² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122111210986 and 122111211004.

It is not an unprimeable number, because it can be changed into a prime (122111211023) 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, 74457236 + ... + 74458875.

It is an arithmetic number, because the mean of its divisors is an integer number (10945334232).

Almost surely, 2^122111211020 is an apocalyptic number.

122111211020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122111211020 is an abundant number, since it is smaller than the sum of its proper divisors (140576810548).

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

122111211020 is a wasteful number, since it uses less digits than its factorization.

122111211020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148916161 (or 148916159 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 122111211020 its reverse (20112111221), we get a palindrome (142223322241).

The spelling of 122111211020 in words is "one hundred twenty-two billion, one hundred eleven million, two hundred eleven thousand, twenty".