212021121208 has 16 divisors (see below), whose sum is σ = 428119571880. Its totient is φ = 97855902048.

The previous prime is 212021121199. The next prime is 212021121227. The reversal of 212021121208 is 802121120212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1019332210 + ... + 1019332417.

Almost surely, 2^212021121208 is an apocalyptic number.

It is an amenable number.

212021121208 is an abundant number, since it is smaller than the sum of its proper divisors (216098450672).

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

212021121208 is a wasteful number, since it uses less digits than its factorization.

212021121208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2038664646 (or 2038664642 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 22.

The spelling of 212021121208 in words is "two hundred twelve billion, twenty-one million, one hundred twenty-one thousand, two hundred eight".