220002121122020 has 24 divisors (see below), whose sum is σ = 473272855683768. Its totient is φ = 85854486291200.

The previous prime is 220002121122011. The next prime is 220002121122059. The reversal of 220002121122020 is 20221121200022.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7619940659776 + 212382180462244 = 2760424^2 + 14573338^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 220002121122020.

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, 134147634011 + ... + 134147635650.

It is an arithmetic number, because the mean of its divisors is an integer number (19719702320157).

Almost surely, 2^{220002121122020} is an apocalyptic number.

220002121122020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220002121122020 is an abundant number, since it is smaller than the sum of its proper divisors (253270734561748).

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

220002121122020 is a wasteful number, since it uses less digits than its factorization.

220002121122020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268295269711 (or 268295269709 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 220002121122020 its reverse (20221121200022), we get a palindrome (240223242322042).

The spelling of 220002121122020 in words is "two hundred twenty trillion, two billion, one hundred twenty-one million, one hundred twenty-two thousand, twenty".