2122111254321 has 64 divisors (see below), whose sum is σ = 3333970886400. Its totient is φ = 1331692992000.

The previous prime is 2122111254313. The next prime is 2122111254331. The reversal of 2122111254321 is 1234521112212.

2122111254321 is a `hidden beast` number, since 2 + 1 + 2 + 2 + 1 + 112 + 543 + 2 + 1 = 666.

It is not a de Polignac number, because 2122111254321 - 2³ = 2122111254313 is a prime.

It is a super-3 number, since 3×2122111254321³ (a number of 38 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2122111254331) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 46558675 + ... + 46604231.

It is an arithmetic number, because the mean of its divisors is an integer number (52093295100).

Almost surely, 2^{2122111254321} is an apocalyptic number.

It is an amenable number.

2122111254321 is a deficient number, since it is larger than the sum of its proper divisors (1211859632079).

2122111254321 is a wasteful number, since it uses less digits than its factorization.

2122111254321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47087 (or 47081 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

Adding to 2122111254321 its reverse (1234521112212), we get a palindrome (3356632366533).

The spelling of 2122111254321 in words is "two trillion, one hundred twenty-two billion, one hundred eleven million, two hundred fifty-four thousand, three hundred twenty-one".