22002780049 has 2 divisors, whose sum is σ = 22002780050. Its totient is φ = 22002780048.

The previous prime is 22002779987. The next prime is 22002780089. The reversal of 22002780049 is 94008720022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16823387025 + 5179393024 = 129705^2 + 71968^2 .

It is a cyclic number.

It is not a de Polignac number, because 22002780049 - 2¹⁹ = 22002255761 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22002779996 and 22002780023.

It is not a weakly prime, because it can be changed into another prime (22002780089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11001390024 + 11001390025.

It is an arithmetic number, because the mean of its divisors is an integer number (11001390025).

Almost surely, 2^22002780049 is an apocalyptic number.

It is an amenable number.

22002780049 is a deficient number, since it is larger than the sum of its proper divisors (1).

22002780049 is an equidigital number, since it uses as much as digits as its factorization.

22002780049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 34.

The spelling of 22002780049 in words is "twenty-two billion, two million, seven hundred eighty thousand, forty-nine".