210021020020212 has 96 divisors (see below), whose sum is σ = 523907541924480. Its totient is φ = 65360783953920.

The previous prime is 210021020020169. The next prime is 210021020020249. The reversal of 210021020020212 is 212020020120012.

It is a junction number, because it is equal to n+sod(n) for n = 210021020020191 and 210021020020200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63519238 + ... + 66743805.

It is an arithmetic number, because the mean of its divisors is an integer number (5457370228380).

Almost surely, 2^{210021020020212} is an apocalyptic number.

It is an amenable number.

210021020020212 is an abundant number, since it is smaller than the sum of its proper divisors (313886521904268).

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

210021020020212 is a wasteful number, since it uses less digits than its factorization.

210021020020212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130263233 (or 130263231 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 210021020020212 its reverse (212020020120012), we get a palindrome (422041040140224).

The spelling of 210021020020212 in words is "two hundred ten trillion, twenty-one billion, twenty million, twenty thousand, two hundred twelve".