121022122201220 has 24 divisors (see below), whose sum is σ = 254162123115264. Its totient is φ = 48405864786656.

The previous prime is 121022122201213. The next prime is 121022122201223. The reversal of 121022122201220 is 22102221220121.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 121022122201192 and 121022122201201.

It is not an unprimeable number, because it can be changed into a prime (121022122201223) 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, 186173294 + ... + 186822213.

It is an arithmetic number, because the mean of its divisors is an integer number (10590088463136).

Almost surely, 2^{121022122201220} is an apocalyptic number.

121022122201220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121022122201220 is an abundant number, since it is smaller than the sum of its proper divisors (133140000914044).

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

121022122201220 is a wasteful number, since it uses less digits than its factorization.

121022122201220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373011739 (or 373011737 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 121022122201220 its reverse (22102221220121), we get a palindrome (143124343421341).

The spelling of 121022122201220 in words is "one hundred twenty-one trillion, twenty-two billion, one hundred twenty-two million, two hundred one thousand, two hundred twenty".