220202002121020 has 24 divisors (see below), whose sum is σ = 462426853039200. Its totient is φ = 88080296356032.

The previous prime is 220202002120979. The next prime is 220202002121069. The reversal of 220202002121020 is 20121200202022.

It is a junction number, because it is equal to n+sod(n) for n = 220202002120985 and 220202002121003.

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, 27941655 + ... + 34944814.

It is an arithmetic number, because the mean of its divisors is an integer number (19267785543300).

Almost surely, 2^{220202002121020} is an apocalyptic number.

220202002121020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220202002121020 is an abundant number, since it is smaller than the sum of its proper divisors (242224850918180).

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

220202002121020 is a wasteful number, since it uses less digits than its factorization.

220202002121020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63061557 (or 63061555 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 220202002121020 its reverse (20121200202022), we get a palindrome (240323202323042).

It can be divided in two parts, 220202002 and 121020, that added together give a palindrome (220323022).

The spelling of 220202002121020 in words is "two hundred twenty trillion, two hundred two billion, two million, one hundred twenty-one thousand, twenty".