212000210021021 has 8 divisors (see below), whose sum is σ = 224176461266688. Its totient is φ = 200157554700000.

The previous prime is 212000210020961. The next prime is 212000210021023. The reversal of 212000210021021 is 120120012000212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212000210021021 - 2¹⁴ = 212000210004637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212000210020987 and 212000210021005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212000210021023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83398979855 + ... + 83398982396.

It is an arithmetic number, because the mean of its divisors is an integer number (28022057658336).

Almost surely, 2^{212000210021021} is an apocalyptic number.

It is an amenable number.

212000210021021 is a deficient number, since it is larger than the sum of its proper divisors (12176251245667).

212000210021021 is a wasteful number, since it uses less digits than its factorization.

212000210021021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166797962323.

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

Adding to 212000210021021 its reverse (120120012000212), we get a palindrome (332120222021233).

The spelling of 212000210021021 in words is "two hundred twelve trillion, two hundred ten million, twenty-one thousand, twenty-one".