213112323222330 has 192 divisors, whose sum is σ = 627104233319040. Its totient is φ = 46144294350336.

The previous prime is 213112323222311. The next prime is 213112323222347. The reversal of 213112323222330 is 33222323211312.

It is a super-2 number, since 2×213112323222330² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 44902084 + ... + 49420863.

It is an arithmetic number, because the mean of its divisors is an integer number (3266167881870).

Almost surely, 2^{213112323222330} is an apocalyptic number.

213112323222330 is an abundant number, since it is smaller than the sum of its proper divisors (413991910096710).

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

213112323222330 is a wasteful number, since it uses less digits than its factorization.

213112323222330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94323053 (or 94323046 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 30.

Adding to 213112323222330 its reverse (33222323211312), we get a palindrome (246334646433642).

The spelling of 213112323222330 in words is "two hundred thirteen trillion, one hundred twelve billion, three hundred twenty-three million, two hundred twenty-two thousand, three hundred thirty".