12220021120037 has 2 divisors, whose sum is σ = 12220021120038. Its totient is φ = 12220021120036.

The previous prime is 12220021120007. The next prime is 12220021120057. The reversal of 12220021120037 is 73002112002221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9307295217796 + 2912725902241 = 3050786^2 + 1706671^2 .

It is an emirp because it is prime and its reverse (73002112002221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12220021120037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12220021119994 and 12220021120021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12220021120007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110010560018 + 6110010560019.

It is an arithmetic number, because the mean of its divisors is an integer number (6110010560019).

Almost surely, 2^{12220021120037} is an apocalyptic number.

It is an amenable number.

12220021120037 is a deficient number, since it is larger than the sum of its proper divisors (1).

12220021120037 is an equidigital number, since it uses as much as digits as its factorization.

12220021120037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 23.

Adding to 12220021120037 its reverse (73002112002221), we get a palindrome (85222133122258).

The spelling of 12220021120037 in words is "twelve trillion, two hundred twenty billion, twenty-one million, one hundred twenty thousand, thirty-seven".