2210021112020 has 24 divisors (see below), whose sum is σ = 4641362112744. Its totient is φ = 883947915776.

The previous prime is 2210021112017. The next prime is 2210021112029. The reversal of 2210021112020 is 202111200122.

It can be written as a sum of positive squares in 4 ways, for example, as 168311626564 + 2041709485456 = 410258^2 + 1428884^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2210021111986 and 2210021112004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2210021112029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3483089 + ... + 4068408.

It is an arithmetic number, because the mean of its divisors is an integer number (193390088031).

Almost surely, 2^{2210021112020} is an apocalyptic number.

2210021112020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2210021112020 is an abundant number, since it is smaller than the sum of its proper divisors (2431341000724).

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

2210021112020 is a wasteful number, since it uses less digits than its factorization.

2210021112020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7566139 (or 7566137 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2210021112020 its reverse (202111200122), we get a palindrome (2412132312142).

The spelling of 2210021112020 in words is "two trillion, two hundred ten billion, twenty-one million, one hundred twelve thousand, twenty".