212021012102 has 32 divisors (see below), whose sum is σ = 335103547392. Its totient is φ = 100410770944.

The previous prime is 212021012089. The next prime is 212021012153. The reversal of 212021012102 is 201210120212.

It is a congruent number.

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, 13542443 + ... + 13558089.

It is an arithmetic number, because the mean of its divisors is an integer number (10471985856).

Almost surely, 2^212021012102 is an apocalyptic number.

212021012102 is a deficient number, since it is larger than the sum of its proper divisors (123082535290).

212021012102 is a wasteful number, since it uses less digits than its factorization.

212021012102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18532.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 212021012102 its reverse (201210120212), we get a palindrome (413231132314).

It can be divided in two parts, 2120210 and 12102, that added together give a palindrome (2132312).

The spelling of 212021012102 in words is "two hundred twelve billion, twenty-one million, twelve thousand, one hundred two".