972026221801 has 2 divisors, whose sum is σ = 972026221802. Its totient is φ = 972026221800.

The previous prime is 972026221787. The next prime is 972026221843. The reversal of 972026221801 is 108122620279.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 912722283225 + 59303938576 = 955365^2 + 243524^2 .

It is an emirp because it is prime and its reverse (108122620279) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-972026221801 is a prime.

It is not a weakly prime, because it can be changed into another prime (972026221301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 486013110900 + 486013110901.

It is an arithmetic number, because the mean of its divisors is an integer number (486013110901).

Almost surely, 2^972026221801 is an apocalyptic number.

It is an amenable number.

972026221801 is a deficient number, since it is larger than the sum of its proper divisors (1).

972026221801 is an equidigital number, since it uses as much as digits as its factorization.

972026221801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 40.

The spelling of 972026221801 in words is "nine hundred seventy-two billion, twenty-six million, two hundred twenty-one thousand, eight hundred one".