210111012022100 has 144 divisors (see below), whose sum is σ = 532360588075008. Its totient is φ = 70479028402560.

The previous prime is 210111012022091. The next prime is 210111012022139. The reversal of 210111012022100 is 1220210111012.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 87080549 + ... + 89460851.

Almost surely, 2^{210111012022100} is an apocalyptic number.

210111012022100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210111012022100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (266180294037504).

210111012022100 is an abundant number, since it is smaller than the sum of its proper divisors (322249576052908).

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

210111012022100 is a wasteful number, since it uses less digits than its factorization.

210111012022100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2383054 (or 2383047 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 210111012022100 its reverse (1220210111012), we get a palindrome (211331222133112).

The spelling of 210111012022100 in words is "two hundred ten trillion, one hundred eleven billion, twelve million, twenty-two thousand, one hundred".