212013212330 has 16 divisors (see below), whose sum is σ = 381630185640. Its totient is φ = 84803861952.

The previous prime is 212013212321. The next prime is 212013212347. The reversal of 212013212330 is 33212310212.

It can be written as a sum of positive squares in 4 ways, for example, as 209838202561 + 2175009769 = 458081^2 + 46637^2 .

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, 617072 + ... + 897108.

Almost surely, 2^212013212330 is an apocalyptic number.

212013212330 is a deficient number, since it is larger than the sum of its proper divisors (169616973310).

212013212330 is a wasteful number, since it uses less digits than its factorization.

212013212330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355753.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 212013212330 its reverse (33212310212), we get a palindrome (245225522542).

The spelling of 212013212330 in words is "two hundred twelve billion, thirteen million, two hundred twelve thousand, three hundred thirty".