202102222111973 has 2 divisors, whose sum is σ = 202102222111974. Its totient is φ = 202102222111972.

The previous prime is 202102222111949. The next prime is 202102222112009. The reversal of 202102222111973 is 379111222201202.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131345306517604 + 70756915594369 = 11460598^2 + 8411713^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202102222111973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202102222101973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101051111055986 + 101051111055987.

It is an arithmetic number, because the mean of its divisors is an integer number (101051111055987).

Almost surely, 2^{202102222111973} is an apocalyptic number.

It is an amenable number.

202102222111973 is a deficient number, since it is larger than the sum of its proper divisors (1).

202102222111973 is an equidigital number, since it uses as much as digits as its factorization.

202102222111973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 35.

The spelling of 202102222111973 in words is "two hundred two trillion, one hundred two billion, two hundred twenty-two million, one hundred eleven thousand, nine hundred seventy-three".