212102202212 has 24 divisors (see below), whose sum is σ = 372038489760. Its totient is φ = 105805776960.

The previous prime is 212102202197. The next prime is 212102202223. The reversal of 212102202212 is 212202201212.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3004739 + ... + 3074517.

It is an arithmetic number, because the mean of its divisors is an integer number (15501603740).

Almost surely, 2^212102202212 is an apocalyptic number.

It is an amenable number.

212102202212 is a deficient number, since it is larger than the sum of its proper divisors (159936287548).

212102202212 is a wasteful number, since it uses less digits than its factorization.

212102202212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71531 (or 71529 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 212102202212 its reverse (212202201212), we get a palindrome (424304403424).

The spelling of 212102202212 in words is "two hundred twelve billion, one hundred two million, two hundred two thousand, two hundred twelve".