220002978941 has 2 divisors, whose sum is σ = 220002978942. Its totient is φ = 220002978940.

The previous prime is 220002978911. The next prime is 220002978961. The reversal of 220002978941 is 149879200022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 179652213316 + 40350765625 = 423854^2 + 200875^2 .

It is a cyclic number.

It is not a de Polignac number, because 220002978941 - 2¹⁰ = 220002977917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220002978892 and 220002978901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220002978911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110001489470 + 110001489471.

It is an arithmetic number, because the mean of its divisors is an integer number (110001489471).

Almost surely, 2^220002978941 is an apocalyptic number.

It is an amenable number.

220002978941 is a deficient number, since it is larger than the sum of its proper divisors (1).

220002978941 is an equidigital number, since it uses as much as digits as its factorization.

220002978941 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 44.

The spelling of 220002978941 in words is "two hundred twenty billion, two million, nine hundred seventy-eight thousand, nine hundred forty-one".