210122100012 has 48 divisors (see below), whose sum is σ = 549311841792. Its totient is φ = 61952460480.

The previous prime is 210122100007. The next prime is 210122100031. The reversal of 210122100012 is 210001221012.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21506388 + ... + 21516155.

It is an arithmetic number, because the mean of its divisors is an integer number (11443996704).

Almost surely, 2^210122100012 is an apocalyptic number.

210122100012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

210122100012 is an abundant number, since it is smaller than the sum of its proper divisors (339189741780).

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

210122100012 is a wasteful number, since it uses less digits than its factorization.

210122100012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43022598 (or 43022596 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 210122100012 its reverse (210001221012), we get a palindrome (420123321024).

It can be divided in two parts, 2101221000 and 12, that added together give a palindrome (2101221012).

The spelling of 210122100012 in words is "two hundred ten billion, one hundred twenty-two million, one hundred thousand, twelve".