1228112107 has 4 divisors (see below), whose sum is σ = 1228684680. Its totient is φ = 1227539536.

The previous prime is 1228112059. The next prime is 1228112161. The reversal of 1228112107 is 7012118221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1228112107 - 2¹⁹ = 1227587819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1228112167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 283057 + ... + 287362.

It is an arithmetic number, because the mean of its divisors is an integer number (307171170).

Almost surely, 2^1228112107 is an apocalyptic number.

1228112107 is a deficient number, since it is larger than the sum of its proper divisors (572573).

1228112107 is an equidigital number, since it uses as much as digits as its factorization.

1228112107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572572.

The product of its (nonzero) digits is 448, while the sum is 25.

The square root of 1228112107 is about 35044.4304704756. The cubic root of 1228112107 is about 1070.8928137958.

The spelling of 1228112107 in words is "one billion, two hundred twenty-eight million, one hundred twelve thousand, one hundred seven".