210002002120100 has 36 divisors (see below), whose sum is σ = 455706223601664. Its totient is φ = 84000454488480.

The previous prime is 210002002120093. The next prime is 210002002120103. The reversal of 210002002120100 is 1021200200012.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (210002002120103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20768069 + ... + 29177331.

Almost surely, 2^{210002002120100} is an apocalyptic number.

210002002120100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210002002120100 is an abundant number, since it is smaller than the sum of its proper divisors (245704221481564).

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

210002002120100 is a wasteful number, since it uses less digits than its factorization.

210002002120100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8659004 (or 8658997 counting only the distinct ones).

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

Adding to 210002002120100 its reverse (1021200200012), we get a palindrome (211023202320112).

The spelling of 210002002120100 in words is "two hundred ten trillion, two billion, two million, one hundred twenty thousand, one hundred".