212013195938 has 8 divisors (see below), whose sum is σ = 318029439132. Its totient is φ = 106003382896.

The previous prime is 212013195937. The next prime is 212013195991. The reversal of 212013195938 is 839591310212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 207049570729 + 4963625209 = 455027^2 + 70453^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (212013195937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1524245 + ... + 1657512.

Almost surely, 2^212013195938 is an apocalyptic number.

212013195938 is a deficient number, since it is larger than the sum of its proper divisors (106016243194).

212013195938 is a wasteful number, since it uses less digits than its factorization.

212013195938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3215076.

The product of its (nonzero) digits is 116640, while the sum is 44.

The spelling of 212013195938 in words is "two hundred twelve billion, thirteen million, one hundred ninety-five thousand, nine hundred thirty-eight".