2123422001 has 4 divisors (see below), whose sum is σ = 2172803952. Its totient is φ = 2074040052.

The previous prime is 2123421991. The next prime is 2123422039. The reversal of 2123422001 is 1002243212.

2123422001 = 3993² + 3994² + ... + 4121².

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-2123422001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2123422061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24690911 + ... + 24690996.

It is an arithmetic number, because the mean of its divisors is an integer number (543200988).

Almost surely, 2^2123422001 is an apocalyptic number.

It is an amenable number.

2123422001 is a deficient number, since it is larger than the sum of its proper divisors (49381951).

2123422001 is an equidigital number, since it uses as much as digits as its factorization.

2123422001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49381950.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2123422001 is about 46080.6033055124. The cubic root of 2123422001 is about 1285.3224828163.

Adding to 2123422001 its reverse (1002243212), we get a palindrome (3125665213).

The spelling of 2123422001 in words is "two billion, one hundred twenty-three million, four hundred twenty-two thousand, one".