2110212120021 has 8 divisors (see below), whose sum is σ = 2861304569760. Its totient is φ = 1382963875152.

The previous prime is 2110212119999. The next prime is 2110212120043. The reversal of 2110212120021 is 1200212120112.

It is an interprime number because it is at equal distance from previous prime (2110212119999) and next prime (2110212120043).

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

It is not a de Polignac number, because 2110212120021 - 2¹⁸ = 2110211857877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2110212120061) 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, 5961051010 + ... + 5961051363.

It is an arithmetic number, because the mean of its divisors is an integer number (357663071220).

Almost surely, 2^{2110212120021} is an apocalyptic number.

It is an amenable number.

2110212120021 is a deficient number, since it is larger than the sum of its proper divisors (751092449739).

2110212120021 is a wasteful number, since it uses less digits than its factorization.

2110212120021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11922102435.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2110212120021 its reverse (1200212120112), we get a palindrome (3310424240133).

Subtracting from 2110212120021 its reverse (1200212120112), we obtain a palindrome (909999999909).

The spelling of 2110212120021 in words is "two trillion, one hundred ten billion, two hundred twelve million, one hundred twenty thousand, twenty-one".