220202200220021 has 16 divisors (see below), whose sum is σ = 228863397654528. Its totient is φ = 211641000854400.

The previous prime is 220202200219957. The next prime is 220202200220027. The reversal of 220202200220021 is 120022002202022.

It is a cyclic number.

It is not a de Polignac number, because 220202200220021 - 2⁶ = 220202200219957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220202200220027) 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, 16884965 + ... + 26935226.

It is an arithmetic number, because the mean of its divisors is an integer number (14303962353408).

Almost surely, 2^{220202200220021} is an apocalyptic number.

It is an amenable number.

220202200220021 is a deficient number, since it is larger than the sum of its proper divisors (8661197434507).

220202200220021 is a wasteful number, since it uses less digits than its factorization.

220202200220021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43821332.

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

Adding to 220202200220021 its reverse (120022002202022), we get a palindrome (340224202422043).

The spelling of 220202200220021 in words is "two hundred twenty trillion, two hundred two billion, two hundred million, two hundred twenty thousand, twenty-one".