213633122 has 4 divisors (see below), whose sum is σ = 320449686. Its totient is φ = 106816560.

The previous prime is 213633023. The next prime is 213633149. The reversal of 213633122 is 221336312.

213633122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 198274561 + 15358561 = 14081^2 + 3919^2 .

It is a super-2 number, since 2×213633122² = 91278221630933768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53408279 + ... + 53408282.

Almost surely, 2^213633122 is an apocalyptic number.

213633122 is a deficient number, since it is larger than the sum of its proper divisors (106816564).

213633122 is a wasteful number, since it uses less digits than its factorization.

213633122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106816563.

The product of its digits is 1296, while the sum is 23.

The square root of 213633122 is about 14616.1938273957. The cubic root of 213633122 is about 597.8003923607.

Adding to 213633122 its reverse (221336312), we get a palindrome (434969434).

The spelling of 213633122 in words is "two hundred thirteen million, six hundred thirty-three thousand, one hundred twenty-two".