1226377217 has 8 divisors (see below), whose sum is σ = 1321985280. Its totient is φ = 1130950800.

The previous prime is 1226377171. The next prime is 1226377223. The reversal of 1226377217 is 7127736221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1226377217 - 2²⁰ = 1225328641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1226377237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31217 + ... + 58542.

It is an arithmetic number, because the mean of its divisors is an integer number (165248160).

Almost surely, 2^1226377217 is an apocalyptic number.

It is an amenable number.

1226377217 is a deficient number, since it is larger than the sum of its proper divisors (95608063).

1226377217 is a wasteful number, since it uses less digits than its factorization.

1226377217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90823.

The product of its digits is 49392, while the sum is 38.

The square root of 1226377217 is about 35019.6690018624. The cubic root of 1226377217 is about 1070.3883113283.

The spelling of 1226377217 in words is "one billion, two hundred twenty-six million, three hundred seventy-seven thousand, two hundred seventeen".