10222320021 has 4 divisors (see below), whose sum is σ = 13629760032. Its totient is φ = 6814880012.

The previous prime is 10222320019. The next prime is 10222320023. The reversal of 10222320021 is 12002322201.

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 an interprime number because it is at equal distance from previous prime (10222320019) and next prime (10222320023).

It is a cyclic number.

It is not a de Polignac number, because 10222320021 - 2¹ = 10222320019 is a prime.

It is a super-2 number, since 2×10222320021² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10222320023) 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, 1703720001 + ... + 1703720006.

It is an arithmetic number, because the mean of its divisors is an integer number (3407440008).

Almost surely, 2^10222320021 is an apocalyptic number.

It is an amenable number.

10222320021 is a deficient number, since it is larger than the sum of its proper divisors (3407440011).

10222320021 is an equidigital number, since it uses as much as digits as its factorization.

10222320021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3407440010.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 10222320021 its reverse (12002322201), we get a palindrome (22224642222).

The spelling of 10222320021 in words is "ten billion, two hundred twenty-two million, three hundred twenty thousand, twenty-one".