213112121132 has 24 divisors (see below), whose sum is σ = 392590195200. Its totient is φ = 100943929296.

The previous prime is 213112121071. The next prime is 213112121153. The reversal of 213112121132 is 231121211312.

It is a super-2 number, since 2×213112121132² (a number of 23 digits) contains 22 as substring.

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, 3151169 + ... + 3218087.

It is an arithmetic number, because the mean of its divisors is an integer number (16357924800).

Almost surely, 2^213112121132 is an apocalyptic number.

It is an amenable number.

213112121132 is a deficient number, since it is larger than the sum of its proper divisors (179478074068).

213112121132 is a wasteful number, since it uses less digits than its factorization.

213112121132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108845 (or 108843 counting only the distinct ones).

The product of its digits is 144, while the sum is 20.

Adding to 213112121132 its reverse (231121211312), we get a palindrome (444233332444).

The spelling of 213112121132 in words is "two hundred thirteen billion, one hundred twelve million, one hundred twenty-one thousand, one hundred thirty-two".