210021010021012 has 24 divisors (see below), whose sum is σ = 380572899777000. Its totient is φ = 101292799620096.

The previous prime is 210021010020989. The next prime is 210021010021057. The reversal of 210021010021012 is 210120010120012.

210021010021012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 20461093279236 + 189559916741776 = 4523394^2 + 13768076^2 .

It is a junction number, because it is equal to n+sod(n) for n = 210021010020983 and 210021010021001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 862855413 + ... + 863098780.

It is an arithmetic number, because the mean of its divisors is an integer number (15857204157375).

Almost surely, 2^{210021010021012} is an apocalyptic number.

It is an amenable number.

210021010021012 is a deficient number, since it is larger than the sum of its proper divisors (170551889755988).

210021010021012 is a wasteful number, since it uses less digits than its factorization.

210021010021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1725955275 (or 1725955273 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 210021010021012 its reverse (210120010120012), we get a palindrome (420141020141024).

The spelling of 210021010021012 in words is "two hundred ten trillion, twenty-one billion, ten million, twenty-one thousand, twelve".