22021212112037 has 2 divisors, whose sum is σ = 22021212112038. Its totient is φ = 22021212112036.

The previous prime is 22021212111889. The next prime is 22021212112073. The reversal of 22021212112037 is 73021121212022.

It is a happy number.

Together with next prime (22021212112073) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22008098655841 + 13113456196 = 4691279^2 + 114514^2 .

It is a cyclic number.

It is not a de Polignac number, because 22021212112037 - 2¹⁸ = 22021211849893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22021212111997 and 22021212112015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22021212112337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11010606056018 + 11010606056019.

It is an arithmetic number, because the mean of its divisors is an integer number (11010606056019).

Almost surely, 2^{22021212112037} is an apocalyptic number.

It is an amenable number.

22021212112037 is a deficient number, since it is larger than the sum of its proper divisors (1).

22021212112037 is an equidigital number, since it uses as much as digits as its factorization.

22021212112037 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 22021212112037 its reverse (73021121212022), we get a palindrome (95042333324059).

The spelling of 22021212112037 in words is "twenty-two trillion, twenty-one billion, two hundred twelve million, one hundred twelve thousand, thirty-seven".