100002220477 has 2 divisors, whose sum is σ = 100002220478. Its totient is φ = 100002220476.

The previous prime is 100002220457. The next prime is 100002220481. The reversal of 100002220477 is 774022200001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62517001156 + 37485219321 = 250034^2 + 193611^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100002220477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100002220457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50001110238 + 50001110239.

It is an arithmetic number, because the mean of its divisors is an integer number (50001110239).

Almost surely, 2^100002220477 is an apocalyptic number.

It is an amenable number.

100002220477 is a deficient number, since it is larger than the sum of its proper divisors (1).

100002220477 is an equidigital number, since it uses as much as digits as its factorization.

100002220477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1568, while the sum is 25.

Adding to 100002220477 its reverse (774022200001), we get a palindrome (874024420478).

The spelling of 100002220477 in words is "one hundred billion, two million, two hundred twenty thousand, four hundred seventy-seven".