23221312102213 has 2 divisors, whose sum is σ = 23221312102214. Its totient is φ = 23221312102212.

The previous prime is 23221312102201. The next prime is 23221312102223. The reversal of 23221312102213 is 31220121312232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21949431140484 + 1271880961729 = 4685022^2 + 1127777^2 .

It is a cyclic number.

It is not a de Polignac number, because 23221312102213 - 2¹³ = 23221312094021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23221312102223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11610656051106 + 11610656051107.

It is an arithmetic number, because the mean of its divisors is an integer number (11610656051107).

Almost surely, 2^{23221312102213} is an apocalyptic number.

It is an amenable number.

23221312102213 is a deficient number, since it is larger than the sum of its proper divisors (1).

23221312102213 is an equidigital number, since it uses as much as digits as its factorization.

23221312102213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 23221312102213 its reverse (31220121312232), we get a palindrome (54441433414445).

The spelling of 23221312102213 in words is "twenty-three trillion, two hundred twenty-one billion, three hundred twelve million, one hundred two thousand, two hundred thirteen".