1226671771 has 12 divisors (see below), whose sum is σ = 1403314192. Its totient is φ = 1065702528.

The previous prime is 1226671751. The next prime is 1226671801. The reversal of 1226671771 is 1771766221.

It is a happy number.

It is not a de Polignac number, because 1226671771 - 2⁵ = 1226671739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1226671741) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 159495 + ... + 167008.

Almost surely, 2^1226671771 is an apocalyptic number.

1226671771 is a deficient number, since it is larger than the sum of its proper divisors (176642421).

1226671771 is a wasteful number, since it uses less digits than its factorization.

1226671771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326550 (or 326533 counting only the distinct ones).

The product of its digits is 49392, while the sum is 40.

The square root of 1226671771 is about 35023.8743002541. The cubic root of 1226671771 is about 1070.4740005479.

The spelling of 1226671771 in words is "one billion, two hundred twenty-six million, six hundred seventy-one thousand, seven hundred seventy-one".