202120200202220 has 24 divisors (see below), whose sum is σ = 427692515242608. Its totient is φ = 80230919163200.

The previous prime is 202120200202169. The next prime is 202120200202241. The reversal of 202120200202220 is 22202002021202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38572554671 + ... + 38572559910.

It is an arithmetic number, because the mean of its divisors is an integer number (17820521468442).

Almost surely, 2^{202120200202220} is an apocalyptic number.

202120200202220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202120200202220 is an abundant number, since it is smaller than the sum of its proper divisors (225572315040388).

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

202120200202220 is a wasteful number, since it uses less digits than its factorization.

202120200202220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77145114721 (or 77145114719 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 202120200202220 its reverse (22202002021202), we get a palindrome (224322202223422).

The spelling of 202120200202220 in words is "two hundred two trillion, one hundred twenty billion, two hundred million, two hundred two thousand, two hundred twenty".