220101121211020 has 96 divisors (see below), whose sum is σ = 539600413363200. Its totient is φ = 73853142992640.

The previous prime is 220101121211003. The next prime is 220101121211051. The reversal of 220101121211020 is 20112121101022.

It is a junction number, because it is equal to n+sod(n) for n = 220101121210985 and 220101121211003.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63056734 + ... + 66455653.

It is an arithmetic number, because the mean of its divisors is an integer number (5620837639200).

Almost surely, 2^{220101121211020} is an apocalyptic number.

220101121211020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220101121211020 is an abundant number, since it is smaller than the sum of its proper divisors (319499292152180).

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

220101121211020 is a wasteful number, since it uses less digits than its factorization.

220101121211020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129512663 (or 129512661 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 220101121211020 its reverse (20112121101022), we get a palindrome (240213242312042).

The spelling of 220101121211020 in words is "two hundred twenty trillion, one hundred one billion, one hundred twenty-one million, two hundred eleven thousand, twenty".