10022031221 has 4 divisors (see below), whose sum is σ = 10082043552. Its totient is φ = 9962018892.

The previous prime is 10022031211. The next prime is 10022031223. The reversal of 10022031221 is 12213022001.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12213022001 = 5323 ⋅2294387.

It is a cyclic number.

It is not a de Polignac number, because 10022031221 - 2⁶ = 10022031157 is a prime.

It is a super-2 number, since 2×10022031221² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10022031196 and 10022031205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10022031223) 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, 30005915 + ... + 30006248.

It is an arithmetic number, because the mean of its divisors is an integer number (2520510888).

Almost surely, 2^10022031221 is an apocalyptic number.

It is an amenable number.

10022031221 is a deficient number, since it is larger than the sum of its proper divisors (60012331).

10022031221 is an equidigital number, since it uses as much as digits as its factorization.

10022031221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60012330.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 10022031221 its reverse (12213022001), we get a palindrome (22235053222).

The spelling of 10022031221 in words is "ten billion, twenty-two million, thirty-one thousand, two hundred twenty-one".