22221221110037 has 2 divisors, whose sum is σ = 22221221110038. Its totient is φ = 22221221110036.

The previous prime is 22221221110013. The next prime is 22221221110057. The reversal of 22221221110037 is 73001112212222.

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., 18065143596721 + 4156077513316 = 4250311^2 + 2038646^2 .

It is a cyclic number.

It is not a de Polignac number, because 22221221110037 - 2⁶ = 22221221109973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22221221109988 and 22221221110015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22221221110057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11110610555018 + 11110610555019.

It is an arithmetic number, because the mean of its divisors is an integer number (11110610555019).

Almost surely, 2^{22221221110037} is an apocalyptic number.

It is an amenable number.

22221221110037 is a deficient number, since it is larger than the sum of its proper divisors (1).

22221221110037 is an equidigital number, since it uses as much as digits as its factorization.

22221221110037 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 26.

Adding to 22221221110037 its reverse (73001112212222), we get a palindrome (95222333322259).

The spelling of 22221221110037 in words is "twenty-two trillion, two hundred twenty-one billion, two hundred twenty-one million, one hundred ten thousand, thirty-seven".