22031321051 has 2 divisors, whose sum is σ = 22031321052. Its totient is φ = 22031321050.

The previous prime is 22031321027. The next prime is 22031321093. The reversal of 22031321051 is 15012313022.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22031321051 is a prime.

It is not a weakly prime, because it can be changed into another prime (22031321251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11015660525 + 11015660526.

It is an arithmetic number, because the mean of its divisors is an integer number (11015660526).

Almost surely, 2^22031321051 is an apocalyptic number.

22031321051 is a deficient number, since it is larger than the sum of its proper divisors (1).

22031321051 is an equidigital number, since it uses as much as digits as its factorization.

22031321051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 22031321051 its reverse (15012313022), we get a palindrome (37043634073).

The spelling of 22031321051 in words is "twenty-two billion, thirty-one million, three hundred twenty-one thousand, fifty-one".