20221223311 has 2 divisors, whose sum is σ = 20221223312. Its totient is φ = 20221223310.

The previous prime is 20221223303. The next prime is 20221223383. The reversal of 20221223311 is 11332212202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20221223311 - 2³ = 20221223303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20221223111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10110611655 + 10110611656.

It is an arithmetic number, because the mean of its divisors is an integer number (10110611656).

Almost surely, 2^20221223311 is an apocalyptic number.

20221223311 is a deficient number, since it is larger than the sum of its proper divisors (1).

20221223311 is an equidigital number, since it uses as much as digits as its factorization.

20221223311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20221223311 its reverse (11332212202), we get a palindrome (31553435513).

The spelling of 20221223311 in words is "twenty billion, two hundred twenty-one million, two hundred twenty-three thousand, three hundred eleven".