100222220977 has 2 divisors, whose sum is σ = 100222220978. Its totient is φ = 100222220976.

The previous prime is 100222220963. The next prime is 100222221017. The reversal of 100222220977 is 779022222001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63250238016 + 36971982961 = 251496^2 + 192281^2 .

It is a cyclic number.

It is not a de Polignac number, because 100222220977 - 2³¹ = 98074737329 is a prime.

It is not a weakly prime, because it can be changed into another prime (100222220947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50111110488 + 50111110489.

It is an arithmetic number, because the mean of its divisors is an integer number (50111110489).

Almost surely, 2^100222220977 is an apocalyptic number.

It is an amenable number.

100222220977 is a deficient number, since it is larger than the sum of its proper divisors (1).

100222220977 is an equidigital number, since it uses as much as digits as its factorization.

100222220977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 34.

Adding to 100222220977 its reverse (779022222001), we get a palindrome (879244442978).

The spelling of 100222220977 in words is "one hundred billion, two hundred twenty-two million, two hundred twenty thousand, nine hundred seventy-seven".