20210222000220 has 48 divisors (see below), whose sum is σ = 64672710402048. Its totient is φ = 4619479314240.

The previous prime is 20210222000179. The next prime is 20210222000237. The reversal of 20210222000220 is 2200022201202.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20210222000220.

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, 24059787676 + ... + 24059788515.

It is an arithmetic number, because the mean of its divisors is an integer number (1347348133376).

Almost surely, 2^{20210222000220} is an apocalyptic number.

20210222000220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20210222000220 is an abundant number, since it is smaller than the sum of its proper divisors (44462488401828).

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

20210222000220 is a wasteful number, since it uses less digits than its factorization.

20210222000220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48119576210 (or 48119576208 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 20210222000220 its reverse (2200022201202), we get a palindrome (22410244201422).

The spelling of 20210222000220 in words is "twenty trillion, two hundred ten billion, two hundred twenty-two million, two hundred twenty", and thus it is an aban number.