22201201221037 has 2 divisors, whose sum is σ = 22201201221038. Its totient is φ = 22201201221036.

The previous prime is 22201201221007. The next prime is 22201201221041. The reversal of 22201201221037 is 73012210210222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22189196512681 + 12004708356 = 4710541^2 + 109566^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22201201221037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22201201221007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11100600610518 + 11100600610519.

It is an arithmetic number, because the mean of its divisors is an integer number (11100600610519).

Almost surely, 2^{22201201221037} is an apocalyptic number.

It is an amenable number.

22201201221037 is a deficient number, since it is larger than the sum of its proper divisors (1).

22201201221037 is an equidigital number, since it uses as much as digits as its factorization.

22201201221037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 25.

Adding to 22201201221037 its reverse (73012210210222), we get a palindrome (95213411431259).

The spelling of 22201201221037 in words is "twenty-two trillion, two hundred one billion, two hundred one million, two hundred twenty-one thousand, thirty-seven".