213122297204 has 12 divisors (see below), whose sum is σ = 374155600644. Its totient is φ = 106220697024.

The previous prime is 213122297191. The next prime is 213122297231. The reversal of 213122297204 is 402792221312.

213122297204 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 25026607204 + 188095690000 = 158198^2 + 433700^2 .

It is a super-2 number, since 2×213122297204² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85111487 + ... + 85113990.

It is an arithmetic number, because the mean of its divisors is an integer number (31179633387).

Almost surely, 2^213122297204 is an apocalyptic number.

It is an amenable number.

213122297204 is a deficient number, since it is larger than the sum of its proper divisors (161033303440).

213122297204 is a wasteful number, since it uses less digits than its factorization.

213122297204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170225794 (or 170225792 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The spelling of 213122297204 in words is "two hundred thirteen billion, one hundred twenty-two million, two hundred ninety-seven thousand, two hundred four".