212213100330 has 96 divisors (see below), whose sum is σ = 687901189248. Its totient is φ = 44096227200.

The previous prime is 212213100329. The next prime is 212213100347. The reversal of 212213100330 is 33001312212.

212213100330 is a `hidden beast` number, since 2 + 1 + 2 + 21 + 310 + 0 + 330 = 666.

It is a super-2 number, since 2×212213100330² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15304261 + ... + 15318120.

It is an arithmetic number, because the mean of its divisors is an integer number (7165637388).

Almost surely, 2^212213100330 is an apocalyptic number.

212213100330 is an abundant number, since it is smaller than the sum of its proper divisors (475688088918).

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

212213100330 is a wasteful number, since it uses less digits than its factorization.

212213100330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30622412 (or 30622409 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 212213100330 its reverse (33001312212), we get a palindrome (245214412542).

The spelling of 212213100330 in words is "two hundred twelve billion, two hundred thirteen million, one hundred thousand, three hundred thirty".