22221031037 has 2 divisors, whose sum is σ = 22221031038. Its totient is φ = 22221031036.

The previous prime is 22221031033. The next prime is 22221031051. The reversal of 22221031037 is 73013012222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21935387236 + 285643801 = 148106^2 + 16901^2 .

It is a cyclic number.

It is not a de Polignac number, because 22221031037 - 2² = 22221031033 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22221031033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11110515518 + 11110515519.

It is an arithmetic number, because the mean of its divisors is an integer number (11110515519).

Almost surely, 2^22221031037 is an apocalyptic number.

It is an amenable number.

22221031037 is a deficient number, since it is larger than the sum of its proper divisors (1).

22221031037 is an equidigital number, since it uses as much as digits as its factorization.

22221031037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 23.

Adding to 22221031037 its reverse (73013012222), we get a palindrome (95234043259).

The spelling of 22221031037 in words is "twenty-two billion, two hundred twenty-one million, thirty-one thousand, thirty-seven".