7221500793037 has 2 divisors, whose sum is σ = 7221500793038. Its totient is φ = 7221500793036.

The previous prime is 7221500792983. The next prime is 7221500793047. The reversal of 7221500793037 is 7303970051227.

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., 4287607987716 + 2933892805321 = 2070654^2 + 1712861^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7221500793037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7221500793047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3610750396518 + 3610750396519.

It is an arithmetic number, because the mean of its divisors is an integer number (3610750396519).

Almost surely, 2^{7221500793037} is an apocalyptic number.

It is an amenable number.

7221500793037 is a deficient number, since it is larger than the sum of its proper divisors (1).

7221500793037 is an equidigital number, since it uses as much as digits as its factorization.

7221500793037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 555660, while the sum is 46.

The spelling of 7221500793037 in words is "seven trillion, two hundred twenty-one billion, five hundred million, seven hundred ninety-three thousand, thirty-seven".