22011263993 has 2 divisors, whose sum is σ = 22011263994. Its totient is φ = 22011263992.

The previous prime is 22011263969. The next prime is 22011264031. The reversal of 22011263993 is 39936211022.

It is a happy number.

It is an a-pointer prime, because the next prime (22011264031) can be obtained adding 22011263993 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22008315904 + 2948089 = 148352^2 + 1717^2 .

It is a cyclic number.

It is not a de Polignac number, because 22011263993 - 2¹⁶ = 22011198457 is a prime.

It is not a weakly prime, because it can be changed into another prime (22011263693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11005631996 + 11005631997.

It is an arithmetic number, because the mean of its divisors is an integer number (11005631997).

Almost surely, 2^22011263993 is an apocalyptic number.

It is an amenable number.

22011263993 is a deficient number, since it is larger than the sum of its proper divisors (1).

22011263993 is an equidigital number, since it uses as much as digits as its factorization.

22011263993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 38.

The spelling of 22011263993 in words is "twenty-two billion, eleven million, two hundred sixty-three thousand, nine hundred ninety-three".