912221190922 has 4 divisors (see below), whose sum is σ = 1368331786386. Its totient is φ = 456110595460.

The previous prime is 912221190911. The next prime is 912221190929. The reversal of 912221190922 is 229091122219.

912221190922 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 229091122219 = 1423 ⋅160991653.

It can be written as a sum of positive squares in only one way, i.e., 516531127401 + 395690063521 = 718701^2 + 629039^2 .

It is not an unprimeable number, because it can be changed into a prime (912221190929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228055297729 + ... + 228055297732.

Almost surely, 2^912221190922 is an apocalyptic number.

912221190922 is a deficient number, since it is larger than the sum of its proper divisors (456110595464).

912221190922 is a wasteful number, since it uses less digits than its factorization.

912221190922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456110595463.

The product of its (nonzero) digits is 23328, while the sum is 40.

The spelling of 912221190922 in words is "nine hundred twelve billion, two hundred twenty-one million, one hundred ninety thousand, nine hundred twenty-two".