22031320001 has 2 divisors, whose sum is σ = 22031320002. Its totient is φ = 22031320000.

The previous prime is 22031319979. The next prime is 22031320007. The reversal of 22031320001 is 10002313022.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11334796225 + 10696523776 = 106465^2 + 103424^2 .

It is a cyclic number.

It is not a de Polignac number, because 22031320001 - 2¹⁰ = 22031318977 is a prime.

It is not a weakly prime, because it can be changed into another prime (22031320007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11015660000 + 11015660001.

It is an arithmetic number, because the mean of its divisors is an integer number (11015660001).

Almost surely, 2^22031320001 is an apocalyptic number.

It is an amenable number.

22031320001 is a deficient number, since it is larger than the sum of its proper divisors (1).

22031320001 is an equidigital number, since it uses as much as digits as its factorization.

22031320001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 22031320001 its reverse (10002313022), we get a palindrome (32033633023).

The spelling of 22031320001 in words is "twenty-two billion, thirty-one million, three hundred twenty thousand, one".