201120212220020 has 24 divisors (see below), whose sum is σ = 422354372023584. Its totient is φ = 80447717962016.

The previous prime is 201120212219951. The next prime is 201120212220101. The reversal of 201120212220020 is 20022212021102.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18416582 + ... + 27228861.

It is an arithmetic number, because the mean of its divisors is an integer number (17598098834316).

Almost surely, 2^{201120212220020} is an apocalyptic number.

201120212220020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201120212220020 is an abundant number, since it is smaller than the sum of its proper divisors (221234159803564).

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

201120212220020 is a wasteful number, since it uses less digits than its factorization.

201120212220020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45865759 (or 45865757 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 201120212220020 its reverse (20022212021102), we get a palindrome (221142424241122).

The spelling of 201120212220020 in words is "two hundred one trillion, one hundred twenty billion, two hundred twelve million, two hundred twenty thousand, twenty".