210021211020000 has 120 divisors (see below), whose sum is σ = 688911576584616. Its totient is φ = 56005656256000.

The previous prime is 210021211019989. The next prime is 210021211020013. The reversal of 210021211020000 is 20112120012.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1750116759 + ... + 1750236758.

Almost surely, 2^{210021211020000} is an apocalyptic number.

210021211020000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210021211020000 is an abundant number, since it is smaller than the sum of its proper divisors (478890365564616).

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

210021211020000 is an equidigital number, since it uses as much as digits as its factorization.

210021211020000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3500353550 (or 3500353527 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 210021211020000 its reverse (20112120012), we get a palindrome (210041323140012).

The spelling of 210021211020000 in words is "two hundred ten trillion, twenty-one billion, two hundred eleven million, twenty thousand".