202201120020 has 48 divisors (see below), whose sum is σ = 566999532288. Its totient is φ = 53840641920.

The previous prime is 202201120019. The next prime is 202201120039. The reversal of 202201120020 is 20021102202.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 202201119978 and 202201120005.

It is a congruent number.

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, 2448316 + ... + 2529555.

It is an arithmetic number, because the mean of its divisors is an integer number (11812490256).

Almost surely, 2^202201120020 is an apocalyptic number.

202201120020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202201120020 is an abundant number, since it is smaller than the sum of its proper divisors (364798412268).

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

202201120020 is a wasteful number, since it uses less digits than its factorization.

202201120020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4978560 (or 4978558 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 202201120020 its reverse (20021102202), we get a palindrome (222222222222).

The spelling of 202201120020 in words is "two hundred two billion, two hundred one million, one hundred twenty thousand, twenty".