213105505210 has 64 divisors (see below), whose sum is σ = 416586240000. Its totient is φ = 78022294272.

The previous prime is 213105505189. The next prime is 213105505241. The reversal of 213105505210 is 12505501312.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11593447 + ... + 11611813.

It is an arithmetic number, because the mean of its divisors is an integer number (6509160000).

Almost surely, 2^213105505210 is an apocalyptic number.

213105505210 is a deficient number, since it is larger than the sum of its proper divisors (203480734790).

213105505210 is a wasteful number, since it uses less digits than its factorization.

213105505210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19135.

The product of its (nonzero) digits is 1500, while the sum is 25.

The spelling of 213105505210 in words is "two hundred thirteen billion, one hundred five million, five hundred five thousand, two hundred ten".