202101102012220 has 48 divisors (see below), whose sum is σ = 426456006818688. Its totient is φ = 80451223997760.

The previous prime is 202101102012181. The next prime is 202101102012223. The reversal of 202101102012220 is 22210201101202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 202101102012194 and 202101102012203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202101102012223) 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, 54181839 + ... + 57791641.

It is an arithmetic number, because the mean of its divisors is an integer number (8884500142056).

Almost surely, 2^{202101102012220} is an apocalyptic number.

202101102012220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202101102012220 is an abundant number, since it is smaller than the sum of its proper divisors (224354904806468).

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

202101102012220 is a wasteful number, since it uses less digits than its factorization.

202101102012220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3623290 (or 3623288 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 202101102012220 its reverse (22210201101202), we get a palindrome (224311303113422).

The spelling of 202101102012220 in words is "two hundred two trillion, one hundred one billion, one hundred two million, twelve thousand, two hundred twenty".