210011120021100 has 36 divisors (see below), whose sum is σ = 607632173928584. Its totient is φ = 56002965338880.

The previous prime is 210011120021083. The next prime is 210011120021107. The reversal of 210011120021100 is 1120021110012.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (210011120021107) 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, 350018533069 + ... + 350018533668.

Almost surely, 2^{210011120021100} is an apocalyptic number.

210011120021100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210011120021100 is an abundant number, since it is smaller than the sum of its proper divisors (397621053907484).

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

210011120021100 is a wasteful number, since it uses less digits than its factorization.

210011120021100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700037066754 (or 700037066747 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 210011120021100 its reverse (1120021110012), we get a palindrome (211131141131112).

The spelling of 210011120021100 in words is "two hundred ten trillion, eleven billion, one hundred twenty million, twenty-one thousand, one hundred".