212210210000 has 50 divisors (see below), whose sum is σ = 513782163642. Its totient is φ = 84884080000.

The previous prime is 212210209973. The next prime is 212210210011. The reversal of 212210210000 is 12012212.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 74723502736 + 137486707264 = 273356^2 + 370792^2 .

It is a tau number, because it is divible by the number of its divisors (50).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 10600511 + ... + 10620510.

Almost surely, 2^212210210000 is an apocalyptic number.

212210210000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212210210000 is an abundant number, since it is smaller than the sum of its proper divisors (301571953642).

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

212210210000 is an equidigital number, since it uses as much as digits as its factorization.

212210210000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21221049 (or 21221028 counting only the distinct ones).

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

Adding to 212210210000 its reverse (12012212), we get a palindrome (212222222212).

The spelling of 212210210000 in words is "two hundred twelve billion, two hundred ten million, two hundred ten thousand".