210021020100212 has 6 divisors (see below), whose sum is σ = 367536785175378. Its totient is φ = 105010510050104.

The previous prime is 210021020100139. The next prime is 210021020100271. The reversal of 210021020100212 is 212001020120012.

It can be written as a sum of positive squares in only one way, i.e., 202597760211856 + 7423259888356 = 14233684^2 + 2724566^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26252627512523 + ... + 26252627512530.

It is an arithmetic number, because the mean of its divisors is an integer number (61256130862563).

Almost surely, 2^{210021020100212} is an apocalyptic number.

It is an amenable number.

210021020100212 is a deficient number, since it is larger than the sum of its proper divisors (157515765075166).

210021020100212 is a wasteful number, since it uses less digits than its factorization.

210021020100212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52505255025057 (or 52505255025055 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 210021020100212 its reverse (212001020120012), we get a palindrome (422022040220224).

The spelling of 210021020100212 in words is "two hundred ten trillion, twenty-one billion, twenty million, one hundred thousand, two hundred twelve".