1022310221 has 2 divisors, whose sum is σ = 1022310222. Its totient is φ = 1022310220.

The previous prime is 1022310217. The next prime is 1022310229. The reversal of 1022310221 is 1220132201.

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., 1016716996 + 5593225 = 31886^2 + 2365^2 .

It is an emirp because it is prime and its reverse (1220132201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1022310221 - 2² = 1022310217 is a prime.

It is a super-2 number, since 2×1022310221² = 2090236375922137682, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1022310196 and 1022310205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1022310229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511155110 + 511155111.

It is an arithmetic number, because the mean of its divisors is an integer number (511155111).

Almost surely, 2^1022310221 is an apocalyptic number.

It is an amenable number.

1022310221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022310221 is an equidigital number, since it uses as much as digits as its factorization.

1022310221 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.

The square root of 1022310221 is about 31973.5863018211. The cubic root of 1022310221 is about 1007.3821106779.

Adding to 1022310221 its reverse (1220132201), we get a palindrome (2242442422).

The spelling of 1022310221 in words is "one billion, twenty-two million, three hundred ten thousand, two hundred twenty-one".