220220200979 has 2 divisors, whose sum is σ = 220220200980. Its totient is φ = 220220200978.

The previous prime is 220220200931. The next prime is 220220200997. The reversal of 220220200979 is 979002022022.

Together with next prime (220220200997) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220220200979 - 2⁸ = 220220200723 is a prime.

It is not a weakly prime, because it can be changed into another prime (220220200279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110110100489 + 110110100490.

It is an arithmetic number, because the mean of its divisors is an integer number (110110100490).

Almost surely, 2^220220200979 is an apocalyptic number.

220220200979 is a deficient number, since it is larger than the sum of its proper divisors (1).

220220200979 is an equidigital number, since it uses as much as digits as its factorization.

220220200979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 35.

The spelling of 220220200979 in words is "two hundred twenty billion, two hundred twenty million, two hundred thousand, nine hundred seventy-nine".