220202101200020 has 24 divisors (see below), whose sum is σ = 462426310586184. Its totient is φ = 88080478943616.

The previous prime is 220202101200013. The next prime is 220202101200049. The reversal of 220202101200020 is 20002101202022.

It can be written as a sum of positive squares in 4 ways, for example, as 17264639945476 + 202937461254544 = 4155074^2 + 14245612^2 .

It is a junction number, because it is equal to n+sod(n) for n = 220202101199968 and 220202101200004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17574407 + ... + 27372686.

It is an arithmetic number, because the mean of its divisors is an integer number (19267762941091).

Almost surely, 2^{220202101200020} is an apocalyptic number.

220202101200020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220202101200020 is an abundant number, since it is smaller than the sum of its proper divisors (242224209386164).

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

220202101200020 is a wasteful number, since it uses less digits than its factorization.

220202101200020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45192059 (or 45192057 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 220202101200020 its reverse (20002101202022), we get a palindrome (240204202402042).

The spelling of 220202101200020 in words is "two hundred twenty trillion, two hundred two billion, one hundred one million, two hundred thousand, twenty".