210021002102 has 8 divisors (see below), whose sum is σ = 315034581312. Its totient is φ = 105009475000.

The previous prime is 210021002083. The next prime is 210021002131. The reversal of 210021002102 is 201200120012.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 224774 + ... + 685977.

It is an arithmetic number, because the mean of its divisors is an integer number (39379322664).

Almost surely, 2^210021002102 is an apocalyptic number.

210021002102 is a deficient number, since it is larger than the sum of its proper divisors (105013579210).

210021002102 is a wasteful number, since it uses less digits than its factorization.

210021002102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1026054.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 210021002102 its reverse (201200120012), we get a palindrome (411221122114).

The spelling of 210021002102 in words is "two hundred ten billion, twenty-one million, two thousand, one hundred two".