202220021121220 has 48 divisors (see below), whose sum is σ = 447015735230400. Its totient is φ = 76630220795520.

The previous prime is 202220021121199. The next prime is 202220021121229. The reversal of 202220021121220 is 22121120022202.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (202220021121229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56255715 + ... + 59742325.

It is an arithmetic number, because the mean of its divisors is an integer number (9312827817300).

Almost surely, 2^{202220021121220} is an apocalyptic number.

202220021121220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202220021121220 is an abundant number, since it is smaller than the sum of its proper divisors (244795714109180).

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

202220021121220 is a wasteful number, since it uses less digits than its factorization.

202220021121220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3639268 (or 3639266 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 202220021121220 its reverse (22121120022202), we get a palindrome (224341141143422).

The spelling of 202220021121220 in words is "two hundred two trillion, two hundred twenty billion, twenty-one million, one hundred twenty-one thousand, two hundred twenty".