1226442566 has 8 divisors (see below), whose sum is σ = 1847560104. Its totient is φ = 610589200.

The previous prime is 1226442563. The next prime is 1226442599. The reversal of 1226442566 is 6652446221.

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

It is a super-2 number, since 2×1226442566² = 3008322735393328712, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226442563) 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, 1315460 + ... + 1316391.

It is an arithmetic number, because the mean of its divisors is an integer number (230945013).

Almost surely, 2^1226442566 is an apocalyptic number.

1226442566 is a deficient number, since it is larger than the sum of its proper divisors (621117538).

1226442566 is a wasteful number, since it uses less digits than its factorization.

1226442566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2632086.

The product of its digits is 138240, while the sum is 38.

The square root of 1226442566 is about 35020.6020222383. The cubic root of 1226442566 is about 1070.4073233045.

Adding to 1226442566 its reverse (6652446221), we get a palindrome (7878888787).

The spelling of 1226442566 in words is "one billion, two hundred twenty-six million, four hundred forty-two thousand, five hundred sixty-six".