20221211230313 has 2 divisors, whose sum is σ = 20221211230314. Its totient is φ = 20221211230312.

The previous prime is 20221211230309. The next prime is 20221211230357. The reversal of 20221211230313 is 31303211212202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16013186715904 + 4208024514409 = 4001648^2 + 2051347^2 .

It is a cyclic number.

It is not a de Polignac number, because 20221211230313 - 2² = 20221211230309 is a prime.

It is a super-2 number, since 2×20221211230313² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20221210230313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10110605615156 + 10110605615157.

It is an arithmetic number, because the mean of its divisors is an integer number (10110605615157).

Almost surely, 2^{20221211230313} is an apocalyptic number.

It is an amenable number.

20221211230313 is a deficient number, since it is larger than the sum of its proper divisors (1).

20221211230313 is an equidigital number, since it uses as much as digits as its factorization.

20221211230313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 20221211230313 its reverse (31303211212202), we get a palindrome (51524422442515).

The spelling of 20221211230313 in words is "twenty trillion, two hundred twenty-one billion, two hundred eleven million, two hundred thirty thousand, three hundred thirteen".