21222233707 has 2 divisors, whose sum is σ = 21222233708. Its totient is φ = 21222233706.

The previous prime is 21222233579. The next prime is 21222233759. The reversal of 21222233707 is 70733222212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21222233707 - 2⁷ = 21222233579 is a prime.

It is not a weakly prime, because it can be changed into another prime (21222239707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10611116853 + 10611116854.

It is an arithmetic number, because the mean of its divisors is an integer number (10611116854).

Almost surely, 2^21222233707 is an apocalyptic number.

21222233707 is a deficient number, since it is larger than the sum of its proper divisors (1).

21222233707 is an equidigital number, since it uses as much as digits as its factorization.

21222233707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 31.

Adding to 21222233707 its reverse (70733222212), we get a palindrome (91955455919).

The spelling of 21222233707 in words is "twenty-one billion, two hundred twenty-two million, two hundred thirty-three thousand, seven hundred seven".