20221102321 has 4 divisors (see below), whose sum is σ = 23109831232. Its totient is φ = 17332373412.

The previous prime is 20221102309. The next prime is 20221102331. The reversal of 20221102321 is 12320112202.

It is a happy number.

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 20221102321 - 2²⁹ = 19684231409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20221102295 and 20221102304.

It is not an unprimeable number, because it can be changed into a prime (20221102331) 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, 1444364445 + ... + 1444364458.

It is an arithmetic number, because the mean of its divisors is an integer number (5777457808).

Almost surely, 2^20221102321 is an apocalyptic number.

It is an amenable number.

20221102321 is a deficient number, since it is larger than the sum of its proper divisors (2888728911).

20221102321 is an equidigital number, since it uses as much as digits as its factorization.

20221102321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2888728910.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20221102321 its reverse (12320112202), we get a palindrome (32541214523).

The spelling of 20221102321 in words is "twenty billion, two hundred twenty-one million, one hundred two thousand, three hundred twenty-one".