122111401220 has 48 divisors (see below), whose sum is σ = 258430622016. Its totient is φ = 48465648000.

The previous prime is 122111401213. The next prime is 122111401241. The reversal of 122111401220 is 22104111221.

It is a super-2 number, since 2×122111401220² (a number of 23 digits) contains 22 as substring.

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, 1353110 + ... + 1440530.

It is an arithmetic number, because the mean of its divisors is an integer number (5383971292).

Almost surely, 2^122111401220 is an apocalyptic number.

122111401220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122111401220 is an abundant number, since it is smaller than the sum of its proper divisors (136319220796).

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

122111401220 is a wasteful number, since it uses less digits than its factorization.

122111401220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87972 (or 87970 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 122111401220 its reverse (22104111221), we get a palindrome (144215512441).

The spelling of 122111401220 in words is "one hundred twenty-two billion, one hundred eleven million, four hundred one thousand, two hundred twenty".