210021112001000 has 128 divisors (see below), whose sum is σ = 509961260540160. Its totient is φ = 80899058016000.

The previous prime is 210021112000961. The next prime is 210021112001023. The reversal of 210021112001000 is 100211120012.

It is a super-2 number, since 2×210021112001000² (a number of 29 digits) contains 22 as substring.

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, 31342859 + ... + 37448858.

It is an arithmetic number, because the mean of its divisors is an integer number (3984072347970).

Almost surely, 2^{210021112001000} is an apocalyptic number.

210021112001000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210021112001000 is an abundant number, since it is smaller than the sum of its proper divisors (299940148539160).

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

210021112001000 is a wasteful number, since it uses less digits than its factorization.

210021112001000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68791852 (or 68791838 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 210021112001000 its reverse (100211120012), we get a palindrome (210121323121012).

The spelling of 210021112001000 in words is "two hundred ten trillion, twenty-one billion, one hundred twelve million, one thousand".