1228176226425 has 48 divisors (see below), whose sum is σ = 2044283476928. Its totient is φ = 650613254400.

The previous prime is 1228176226421. The next prime is 1228176226427. The reversal of 1228176226425 is 5246226718221.

It is not a de Polignac number, because 1228176226425 - 2² = 1228176226421 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1228176226421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20667255 + ... + 20726595.

Almost surely, 2^{1228176226425} is an apocalyptic number.

1228176226425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1228176226425 is a deficient number, since it is larger than the sum of its proper divisors (816107250503).

1228176226425 is a wasteful number, since it uses less digits than its factorization.

1228176226425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61210 (or 61205 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 48.

The spelling of 1228176226425 in words is "one trillion, two hundred twenty-eight billion, one hundred seventy-six million, two hundred twenty-six thousand, four hundred twenty-five".