210021121101000 has 128 divisors (see below), whose sum is σ = 714835525023360. Its totient is φ = 50914211168000.

The previous prime is 210021121100977. The next prime is 210021121101089. The reversal of 210021121101000 is 101121120012.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3182105199 + ... + 3182171198.

It is an arithmetic number, because the mean of its divisors is an integer number (5584652539245).

Almost surely, 2^{210021121101000} is an apocalyptic number.

210021121101000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210021121101000 is an abundant number, since it is smaller than the sum of its proper divisors (504814403922360).

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

210021121101000 is a wasteful number, since it uses less digits than its factorization.

210021121101000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6364276432 (or 6364276418 counting only the distinct ones).

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

Adding to 210021121101000 its reverse (101121120012), we get a palindrome (210122242221012).

The spelling of 210021121101000 in words is "two hundred ten trillion, twenty-one billion, one hundred twenty-one million, one hundred one thousand".