212110010221021 has 8 divisors (see below), whose sum is σ = 231398566991424. Its totient is φ = 192822424878720.

The previous prime is 212110010220943. The next prime is 212110010221117. The reversal of 212110010221021 is 120122010011212.

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 212110010221021 - 2⁹ = 212110010220509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212110010220986 and 212110010221004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212110010221121) 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, 242400436 + ... + 243273901.

It is an arithmetic number, because the mean of its divisors is an integer number (28924820873928).

Almost surely, 2^{212110010221021} is an apocalyptic number.

It is an amenable number.

212110010221021 is a deficient number, since it is larger than the sum of its proper divisors (19288556770403).

212110010221021 is a wasteful number, since it uses less digits than its factorization.

212110010221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485714051.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 212110010221021 its reverse (120122010011212), we get a palindrome (332232020232233).

The spelling of 212110010221021 in words is "two hundred twelve trillion, one hundred ten billion, ten million, two hundred twenty-one thousand, twenty-one".