10221211200979 has 2 divisors, whose sum is σ = 10221211200980. Its totient is φ = 10221211200978.

The previous prime is 10221211200923. The next prime is 10221211201027. The reversal of 10221211200979 is 97900211212201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10221211200979 is a prime.

It is not a weakly prime, because it can be changed into another prime (10221211200479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110605600489 + 5110605600490.

It is an arithmetic number, because the mean of its divisors is an integer number (5110605600490).

Almost surely, 2^{10221211200979} is an apocalyptic number.

10221211200979 is a deficient number, since it is larger than the sum of its proper divisors (1).

10221211200979 is an equidigital number, since it uses as much as digits as its factorization.

10221211200979 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 10221211200979 in words is "ten trillion, two hundred twenty-one billion, two hundred eleven million, two hundred thousand, nine hundred seventy-nine".