2100422321 has 4 divisors (see below), whose sum is σ = 2107844592. Its totient is φ = 2093000052.

The previous prime is 2100422297. The next prime is 2100422341. The reversal of 2100422321 is 1232240012.

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 not a de Polignac number, because 2100422321 - 2⁶ = 2100422257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2100422321.

It is not an unprimeable number, because it can be changed into a prime (2100422341) 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, 3710711 + ... + 3711276.

It is an arithmetic number, because the mean of its divisors is an integer number (526961148).

Almost surely, 2^2100422321 is an apocalyptic number.

It is an amenable number.

2100422321 is a deficient number, since it is larger than the sum of its proper divisors (7422271).

2100422321 is an equidigital number, since it uses as much as digits as its factorization.

2100422321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7422270.

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

The square root of 2100422321 is about 45830.3646177946. The cubic root of 2100422321 is about 1280.6650029596.

Adding to 2100422321 its reverse (1232240012), we get a palindrome (3332662333).

The spelling of 2100422321 in words is "two billion, one hundred million, four hundred twenty-two thousand, three hundred twenty-one".