220201002121020 has 48 divisors (see below), whose sum is σ = 623991273494400. Its totient is φ = 58012794131776.

The previous prime is 220201002120943. The next prime is 220201002121033. The reversal of 220201002121020 is 20121200102022.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22108529370 + ... + 22108539329.

It is an arithmetic number, because the mean of its divisors is an integer number (12999818197800).

Almost surely, 2^{220201002121020} is an apocalyptic number.

220201002121020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220201002121020 is an abundant number, since it is smaller than the sum of its proper divisors (403790271373380).

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

220201002121020 is a wasteful number, since it uses less digits than its factorization.

220201002121020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44217068794 (or 44217068792 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 220201002121020 its reverse (20121200102022), we get a palindrome (240322202223042).

The spelling of 220201002121020 in words is "two hundred twenty trillion, two hundred one billion, two million, one hundred twenty-one thousand, twenty".