210021002201000 has 32 divisors (see below), whose sum is σ = 491449145152680. Its totient is φ = 84008400880000.

The previous prime is 210021002200967. The next prime is 210021002201027. The reversal of 210021002201000 is 102200120012.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 138870056450596 + 71150945750404 = 11784314^2 + 8435102^2 .

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, 105010500101 + ... + 105010502100.

Almost surely, 2^{210021002201000} is an apocalyptic number.

210021002201000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210021002201000 is an abundant number, since it is smaller than the sum of its proper divisors (281428142951680).

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

210021002201000 is a wasteful number, since it uses less digits than its factorization.

210021002201000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210021002222 (or 210021002208 counting only the distinct ones).

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

Adding to 210021002201000 its reverse (102200120012), we get a palindrome (210123202321012).

The spelling of 210021002201000 in words is "two hundred ten trillion, twenty-one billion, two million, two hundred one thousand".