210122212100020 has 24 divisors (see below), whose sum is σ = 481370885902368. Its totient is φ = 76408077127200.

The previous prime is 210122212099991. The next prime is 210122212100051. The reversal of 210122212100020 is 20001212221012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 210122212099967 and 210122212100003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 477550481826 + ... + 477550482265.

It is an arithmetic number, because the mean of its divisors is an integer number (20057120245932).

Almost surely, 2^{210122212100020} is an apocalyptic number.

210122212100020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210122212100020 is an abundant number, since it is smaller than the sum of its proper divisors (271248673802348).

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

210122212100020 is a wasteful number, since it uses less digits than its factorization.

210122212100020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 955100964111 (or 955100964109 counting only the distinct ones).

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

Adding to 210122212100020 its reverse (20001212221012), we get a palindrome (230123424321032).

The spelling of 210122212100020 in words is "two hundred ten trillion, one hundred twenty-two billion, two hundred twelve million, one hundred thousand, twenty".