210021022012 has 12 divisors (see below), whose sum is σ = 369877788280. Its totient is φ = 104341653936.

The previous prime is 210021022007. The next prime is 210021022027. The reversal of 210021022012 is 210220120012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 210021021983 and 210021022001.

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, 167213562 + ... + 167214817.

Almost surely, 2^210021022012 is an apocalyptic number.

It is an amenable number.

210021022012 is a deficient number, since it is larger than the sum of its proper divisors (159856766268).

210021022012 is a wasteful number, since it uses less digits than its factorization.

210021022012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334428540 (or 334428538 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 210021022012 its reverse (210220120012), we get a palindrome (420241142024).

The spelling of 210021022012 in words is "two hundred ten billion, twenty-one million, twenty-two thousand, twelve".