210000010122 has 48 divisors (see below), whose sum is σ = 522694386240. Its totient is φ = 59689115136.

The previous prime is 210000010081. The next prime is 210000010123. The reversal of 210000010122 is 221010000012.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (210000010123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4293472 + ... + 4342107.

It is an arithmetic number, because the mean of its divisors is an integer number (10889466380).

Almost surely, 2^210000010122 is an apocalyptic number.

210000010122 is an abundant number, since it is smaller than the sum of its proper divisors (312694376118).

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

210000010122 is a wasteful number, since it uses less digits than its factorization.

210000010122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8635787 (or 8635784 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 210000010122 its reverse (221010000012), we get a palindrome (431010010134).

The spelling of 210000010122 in words is "two hundred ten billion, ten thousand, one hundred twenty-two".