212012200211021 has 8 divisors (see below), whose sum is σ = 242406444382080. Its totient is φ = 181644652789488.

The previous prime is 212012200210981. The next prime is 212012200211023. The reversal of 212012200211021 is 120112002210212.

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

It is not a de Polignac number, because 212012200211021 - 2¹⁸ = 212012199948877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212012200211023) 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, 6674170361 + ... + 6674202126.

It is an arithmetic number, because the mean of its divisors is an integer number (30300805547760).

Almost surely, 2^{212012200211021} is an apocalyptic number.

It is an amenable number.

212012200211021 is a deficient number, since it is larger than the sum of its proper divisors (30394244171059).

212012200211021 is a wasteful number, since it uses less digits than its factorization.

212012200211021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13348374763.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 212012200211021 its reverse (120112002210212), we get a palindrome (332124202421233).

The spelling of 212012200211021 in words is "two hundred twelve trillion, twelve billion, two hundred million, two hundred eleven thousand, twenty-one".