212201022210 has 32 divisors (see below), whose sum is σ = 509311927872. Its totient is φ = 56583664320.

The previous prime is 212201022203. The next prime is 212201022301. The reversal of 212201022210 is 12220102212.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 212201022210.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 346665 + ... + 737955.

It is an arithmetic number, because the mean of its divisors is an integer number (15915997746).

Almost surely, 2^212201022210 is an apocalyptic number.

212201022210 is an abundant number, since it is smaller than the sum of its proper divisors (297110905662).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212201022210 is a wasteful number, since it uses less digits than its factorization.

212201022210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409378.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 212201022210 its reverse (12220102212), we get a palindrome (224421124422).

The spelling of 212201022210 in words is "two hundred twelve billion, two hundred one million, twenty-two thousand, two hundred ten".