2122212311021 has 8 divisors (see below), whose sum is σ = 2315216217600. Its totient is φ = 1929220990240.

The previous prime is 2122212310997. The next prime is 2122212311041. The reversal of 2122212311021 is 1201132122212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2122212311021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2122212310984 and 2122212311002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122212311041) 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, 2792141 + ... + 3469938.

It is an arithmetic number, because the mean of its divisors is an integer number (289402027200).

Almost surely, 2^{2122212311021} is an apocalyptic number.

It is an amenable number.

2122212311021 is a deficient number, since it is larger than the sum of its proper divisors (193003906579).

2122212311021 is a wasteful number, since it uses less digits than its factorization.

2122212311021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6292899.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 2122212311021 its reverse (1201132122212), we get a palindrome (3323344433233).

The spelling of 2122212311021 in words is "two trillion, one hundred twenty-two billion, two hundred twelve million, three hundred eleven thousand, twenty-one".