212220230330 has 16 divisors (see below), whose sum is σ = 386288510760. Its totient is φ = 83934292992.

The previous prime is 212220230329. The next prime is 212220230393. The reversal of 212220230330 is 33032022212.

It can be written as a sum of positive squares in 4 ways, for example, as 167126433721 + 45093796609 = 408811^2 + 212353^2 .

It is a super-2 number, since 2×212220230330² (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, 119223959 + ... + 119225738.

Almost surely, 2^212220230330 is an apocalyptic number.

212220230330 is a deficient number, since it is larger than the sum of its proper divisors (174068280430).

212220230330 is a wasteful number, since it uses less digits than its factorization.

212220230330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238449793.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 212220230330 its reverse (33032022212), we get a palindrome (245252252542).

The spelling of 212220230330 in words is "two hundred twelve billion, two hundred twenty million, two hundred thirty thousand, three hundred thirty".