1202210121979 has 2 divisors, whose sum is σ = 1202210121980. Its totient is φ = 1202210121978.

The previous prime is 1202210121971. The next prime is 1202210122027. The reversal of 1202210121979 is 9791210122021.

It is a weak prime.

It is an emirp because it is prime and its reverse (9791210122021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1202210121979 - 2³ = 1202210121971 is a prime.

It is not a weakly prime, because it can be changed into another prime (1202210121971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601105060989 + 601105060990.

It is an arithmetic number, because the mean of its divisors is an integer number (601105060990).

Almost surely, 2^{1202210121979} is an apocalyptic number.

1202210121979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202210121979 is an equidigital number, since it uses as much as digits as its factorization.

1202210121979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 37.

The spelling of 1202210121979 in words is "one trillion, two hundred two billion, two hundred ten million, one hundred twenty-one thousand, nine hundred seventy-nine".