213266109290 has 32 divisors (see below), whose sum is σ = 417200913360. Its totient is φ = 78021978624.

The previous prime is 213266109253. The next prime is 213266109293. The reversal of 213266109290 is 92901662312.

It can be written as a sum of positive squares in 8 ways, for example, as 51329886721 + 161936222569 = 226561^2 + 402413^2 .

It is not an unprimeable number, because it can be changed into a prime (213266109293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7511099 + ... + 7539438.

Almost surely, 2^213266109290 is an apocalyptic number.

213266109290 is a deficient number, since it is larger than the sum of its proper divisors (203934804070).

213266109290 is a wasteful number, since it uses less digits than its factorization.

213266109290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15050666.

The product of its (nonzero) digits is 69984, while the sum is 41.

The spelling of 213266109290 in words is "two hundred thirteen billion, two hundred sixty-six million, one hundred nine thousand, two hundred ninety".