210122112012 has 24 divisors (see below), whose sum is σ = 519125218416. Its totient is φ = 65920662528.

The previous prime is 210122111999. The next prime is 210122112071. The reversal of 210122112012 is 210211221012.

It is a junction number, because it is equal to n+sod(n) for n = 210122111982 and 210122112000.

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, 515004973 + ... + 515005380.

It is an arithmetic number, because the mean of its divisors is an integer number (21630217434).

Almost surely, 2^210122112012 is an apocalyptic number.

It is an amenable number.

210122112012 is an abundant number, since it is smaller than the sum of its proper divisors (309003106404).

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

210122112012 is a wasteful number, since it uses less digits than its factorization.

210122112012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030010377 (or 1030010375 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 210122112012 its reverse (210211221012), we get a palindrome (420333333024).

The spelling of 210122112012 in words is "two hundred ten billion, one hundred twenty-two million, one hundred twelve thousand, twelve".