210122000120020 has 24 divisors (see below), whose sum is σ = 441725122927368. Its totient is φ = 83959481443200.

The previous prime is 210122000120009. The next prime is 210122000120063. The reversal of 210122000120020 is 20021000221012.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 68304340446736 + 141817659673284 = 8264644^2 + 11908722^2 .

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, 5582393511 + ... + 5582431150.

It is an arithmetic number, because the mean of its divisors is an integer number (18405213455307).

Almost surely, 2^{210122000120020} is an apocalyptic number.

210122000120020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210122000120020 is an abundant number, since it is smaller than the sum of its proper divisors (231603122807348).

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

210122000120020 is a wasteful number, since it uses less digits than its factorization.

210122000120020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11164825611 (or 11164825609 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 210122000120020 its reverse (20021000221012), we get a palindrome (230143000341032).

The spelling of 210122000120020 in words is "two hundred ten trillion, one hundred twenty-two billion, one hundred twenty thousand, twenty".