1202200101979 has 2 divisors, whose sum is σ = 1202200101980. Its totient is φ = 1202200101978.

The previous prime is 1202200101953. The next prime is 1202200102009. The reversal of 1202200101979 is 9791010022021.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (9791010022021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1202200101979 - 2³⁵ = 1167840363611 is a prime.

It is not a weakly prime, because it can be changed into another prime (1202200101379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601100050989 + 601100050990.

It is an arithmetic number, because the mean of its divisors is an integer number (601100050990).

Almost surely, 2^{1202200101979} is an apocalyptic number.

1202200101979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202200101979 is an equidigital number, since it uses as much as digits as its factorization.

1202200101979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 34.

The spelling of 1202200101979 in words is "one trillion, two hundred two billion, two hundred million, one hundred one thousand, nine hundred seventy-nine".