912216242 has 12 divisors (see below), whose sum is σ = 1591724430. Its totient is φ = 390949776.

The previous prime is 912216229. The next prime is 912216247. The reversal of 912216242 is 242612219.

It can be written as a sum of positive squares in only one way, i.e., 871371361 + 40844881 = 29519^2 + 6391^2 .

It is not an unprimeable number, because it can be changed into a prime (912216247) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4654067 + ... + 4654262.

Almost surely, 2^912216242 is an apocalyptic number.

912216242 is a deficient number, since it is larger than the sum of its proper divisors (679508188).

912216242 is a wasteful number, since it uses less digits than its factorization.

912216242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9308345 (or 9308338 counting only the distinct ones).

The product of its digits is 3456, while the sum is 29.

The square root of 912216242 is about 30202.9177729570. The cubic root of 912216242 is about 969.8381570065.

The spelling of 912216242 in words is "nine hundred twelve million, two hundred sixteen thousand, two hundred forty-two".