201002222121979 has 2 divisors, whose sum is σ = 201002222121980. Its totient is φ = 201002222121978.

The previous prime is 201002222121973. The next prime is 201002222122043. The reversal of 201002222121979 is 979121222200102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201002222121979 - 2⁷ = 201002222121851 is a prime.

It is not a weakly prime, because it can be changed into another prime (201002222121973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100501111060989 + 100501111060990.

It is an arithmetic number, because the mean of its divisors is an integer number (100501111060990).

Almost surely, 2^{201002222121979} is an apocalyptic number.

201002222121979 is a deficient number, since it is larger than the sum of its proper divisors (1).

201002222121979 is an equidigital number, since it uses as much as digits as its factorization.

201002222121979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 40.

The spelling of 201002222121979 in words is "two hundred one trillion, two billion, two hundred twenty-two million, one hundred twenty-one thousand, nine hundred seventy-nine".