210122012000 has 96 divisors (see below), whose sum is σ = 517137566400. Its totient is φ = 83907532800.

The previous prime is 210122011991. The next prime is 210122012003. The reversal of 210122012000 is 210221012.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210122012003) 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, 2352152 + ... + 2439848.

It is an arithmetic number, because the mean of its divisors is an integer number (5386849650).

Almost surely, 2^210122012000 is an apocalyptic number.

210122012000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210122012000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (258568783200).

210122012000 is an abundant number, since it is smaller than the sum of its proper divisors (307015554400).

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

210122012000 is an equidigital number, since it uses as much as digits as its factorization.

210122012000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88321 (or 88303 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 210122012000 its reverse (210221012), we get a palindrome (210332233012).

The spelling of 210122012000 in words is "two hundred ten billion, one hundred twenty-two million, twelve thousand".