10222031021 has 2 divisors, whose sum is σ = 10222031022. Its totient is φ = 10222031020.

The previous prime is 10222030981. The next prime is 10222031063. The reversal of 10222031021 is 12013022201.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8337516100 + 1884514921 = 91310^2 + 43411^2 .

It is a cyclic number.

It is not a de Polignac number, because 10222031021 - 2¹⁸ = 10221768877 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10222030987 and 10222031005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10222031821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5111015510 + 5111015511.

It is an arithmetic number, because the mean of its divisors is an integer number (5111015511).

Almost surely, 2^10222031021 is an apocalyptic number.

It is an amenable number.

10222031021 is a deficient number, since it is larger than the sum of its proper divisors (1).

10222031021 is an equidigital number, since it uses as much as digits as its factorization.

10222031021 is an evil number, because the sum of its binary digits is even.

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

Adding to 10222031021 its reverse (12013022201), we get a palindrome (22235053222).

The spelling of 10222031021 in words is "ten billion, two hundred twenty-two million, thirty-one thousand, twenty-one".