210000122202100 has 36 divisors (see below), whose sum is σ = 456013892655244. Its totient is φ = 83942237364480.

The previous prime is 210000122202067. The next prime is 210000122202109. The reversal of 210000122202100 is 1202221000012.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 850331113956 + 209149791088144 = 922134^2 + 14462012^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210000122202109) 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, 722497929 + ... + 722788528.

Almost surely, 2^{210000122202100} is an apocalyptic number.

210000122202100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210000122202100 is an abundant number, since it is smaller than the sum of its proper divisors (246013770453144).

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

210000122202100 is a wasteful number, since it uses less digits than its factorization.

210000122202100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1445287924 (or 1445287917 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 210000122202100 its reverse (1202221000012), we get a palindrome (211202343202112).

The spelling of 210000122202100 in words is "two hundred ten trillion, one hundred twenty-two million, two hundred two thousand, one hundred".