210021012100112 has 10 divisors (see below), whose sum is σ = 406915710943998. Its totient is φ = 105010506050048.

The previous prime is 210021012100111. The next prime is 210021012100157. The reversal of 210021012100112 is 211001210120012.

It can be written as a sum of positive squares in only one way, i.e., 130676814508816 + 79344197591296 = 11431396^2 + 8907536^2 .

It is a super-2 number, since 2×210021012100112² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (210021012100111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6563156628113 + ... + 6563156628144.

Almost surely, 2^{210021012100112} is an apocalyptic number.

It is an amenable number.

210021012100112 is a deficient number, since it is larger than the sum of its proper divisors (196894698843886).

210021012100112 is a wasteful number, since it uses less digits than its factorization.

210021012100112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13126313256265 (or 13126313256259 counting only the distinct ones).

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

Adding to 210021012100112 its reverse (211001210120012), we get a palindrome (421022222220124).

The spelling of 210021012100112 in words is "two hundred ten trillion, twenty-one billion, twelve million, one hundred thousand, one hundred twelve".