212002001020221 has 32 divisors (see below), whose sum is σ = 300240509175552. Its totient is φ = 132784498851840.

The previous prime is 212002001020189. The next prime is 212002001020231. The reversal of 212002001020221 is 122020100200212.

It is not a de Polignac number, because 212002001020221 - 2⁵ = 212002001020189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212002001020221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212002001020231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86107540 + ... + 88535373.

It is an arithmetic number, because the mean of its divisors is an integer number (9382515911736).

Almost surely, 2^{212002001020221} is an apocalyptic number.

It is an amenable number.

212002001020221 is a deficient number, since it is larger than the sum of its proper divisors (88238508155331).

212002001020221 is a wasteful number, since it uses less digits than its factorization.

212002001020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174643253.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 212002001020221 its reverse (122020100200212), we get a palindrome (334022101220433).

The spelling of 212002001020221 in words is "two hundred twelve trillion, two billion, one million, twenty thousand, two hundred twenty-one".