202201121221220 has 96 divisors (see below), whose sum is σ = 476637387883776. Its totient is φ = 71426104256000.

The previous prime is 202201121221207. The next prime is 202201121221241. The reversal of 202201121221220 is 22122121102202.

202201121221220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 202201121221192 and 202201121221201.

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, 84671024 + ... + 87026343.

It is an arithmetic number, because the mean of its divisors is an integer number (4964972790456).

Almost surely, 2^{202201121221220} is an apocalyptic number.

202201121221220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202201121221220 is an abundant number, since it is smaller than the sum of its proper divisors (274436266662556).

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

202201121221220 is a wasteful number, since it uses less digits than its factorization.

202201121221220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171697541 (or 171697539 counting only the distinct ones).

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

Adding to 202201121221220 its reverse (22122121102202), we get a palindrome (224323242323422).

The spelling of 202201121221220 in words is "two hundred two trillion, two hundred one billion, one hundred twenty-one million, two hundred twenty-one thousand, two hundred twenty".