2122321541 has 4 divisors (see below), whose sum is σ = 2122828800. Its totient is φ = 2121814284.

The previous prime is 2122321493. The next prime is 2122321543. The reversal of 2122321541 is 1451232212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2122321541 is a prime.

It is a super-2 number, since 2×2122321541² = 9008497446785229362, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122321543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 247301 + ... + 255738.

It is an arithmetic number, because the mean of its divisors is an integer number (530707200).

Almost surely, 2^2122321541 is an apocalyptic number.

It is an amenable number.

2122321541 is a deficient number, since it is larger than the sum of its proper divisors (507259).

2122321541 is an equidigital number, since it uses as much as digits as its factorization.

2122321541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507258.

The product of its digits is 960, while the sum is 23.

The square root of 2122321541 is about 46068.6611591872. The cubic root of 2122321541 is about 1285.1004056858.

Adding to 2122321541 its reverse (1451232212), we get a palindrome (3573553753).

The spelling of 2122321541 in words is "two billion, one hundred twenty-two million, three hundred twenty-one thousand, five hundred forty-one".