202202121971 has 2 divisors, whose sum is σ = 202202121972. Its totient is φ = 202202121970.

The previous prime is 202202121887. The next prime is 202202122009. The reversal of 202202121971 is 179121202202.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202202121971 is a prime.

It is not a weakly prime, because it can be changed into another prime (202202123971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101101060985 + 101101060986.

It is an arithmetic number, because the mean of its divisors is an integer number (101101060986).

Almost surely, 2^202202121971 is an apocalyptic number.

202202121971 is a deficient number, since it is larger than the sum of its proper divisors (1).

202202121971 is an equidigital number, since it uses as much as digits as its factorization.

202202121971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 29.

The spelling of 202202121971 in words is "two hundred two billion, two hundred two million, one hundred twenty-one thousand, nine hundred seventy-one".