2101025620220 has 48 divisors (see below), whose sum is σ = 4472503203168. Its totient is φ = 828982548480.

The previous prime is 2101025620201. The next prime is 2101025620229. The reversal of 2101025620220 is 220265201012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101025620229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1608221 + ... + 2605460.

It is an arithmetic number, because the mean of its divisors is an integer number (93177150066).

Almost surely, 2^{2101025620220} is an apocalyptic number.

2101025620220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2101025620220 is an abundant number, since it is smaller than the sum of its proper divisors (2371477582948).

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

2101025620220 is a wasteful number, since it uses less digits than its factorization.

2101025620220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4214030 (or 4214028 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The spelling of 2101025620220 in words is "two trillion, one hundred one billion, twenty-five million, six hundred twenty thousand, two hundred twenty".