212253433604 has 6 divisors (see below), whose sum is σ = 371443508814. Its totient is φ = 106126716800.

The previous prime is 212253433597. The next prime is 212253433673. The reversal of 212253433604 is 406334352212.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 173955726400 + 38297707204 = 417080^2 + 195698^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26531679197 + ... + 26531679204.

It is an arithmetic number, because the mean of its divisors is an integer number (61907251469).

Almost surely, 2^212253433604 is an apocalyptic number.

It is an amenable number.

212253433604 is a deficient number, since it is larger than the sum of its proper divisors (159190075210).

212253433604 is a wasteful number, since it uses less digits than its factorization.

212253433604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53063358405 (or 53063358403 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 35.

Adding to 212253433604 its reverse (406334352212), we get a palindrome (618587785816).

The spelling of 212253433604 in words is "two hundred twelve billion, two hundred fifty-three million, four hundred thirty-three thousand, six hundred four".