22201431231061 has 2 divisors, whose sum is σ = 22201431231062. Its totient is φ = 22201431231060.

The previous prime is 22201431231029. The next prime is 22201431231137. The reversal of 22201431231061 is 16013213410222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12229218820900 + 9972212410161 = 3497030^2 + 3157881^2 .

It is a cyclic number.

It is not a de Polignac number, because 22201431231061 - 2⁵ = 22201431231029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22201431031061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11100715615530 + 11100715615531.

It is an arithmetic number, because the mean of its divisors is an integer number (11100715615531).

Almost surely, 2^{22201431231061} is an apocalyptic number.

It is an amenable number.

22201431231061 is a deficient number, since it is larger than the sum of its proper divisors (1).

22201431231061 is an equidigital number, since it uses as much as digits as its factorization.

22201431231061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 22201431231061 its reverse (16013213410222), we get a palindrome (38214644641283).

The spelling of 22201431231061 in words is "twenty-two trillion, two hundred one billion, four hundred thirty-one million, two hundred thirty-one thousand, sixty-one".