1226666422 has 4 divisors (see below), whose sum is σ = 1839999636. Its totient is φ = 613333210.

The previous prime is 1226666407. The next prime is 1226666431. The reversal of 1226666422 is 2246666221.

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

It is a super-3 number, since 3×1226666422³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306666604 + ... + 306666607.

It is an arithmetic number, because the mean of its divisors is an integer number (459999909).

Almost surely, 2^1226666422 is an apocalyptic number.

1226666422 is a deficient number, since it is larger than the sum of its proper divisors (613333214).

1226666422 is an equidigital number, since it uses as much as digits as its factorization.

1226666422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613333213.

The product of its digits is 82944, while the sum is 37.

The square root of 1226666422 is about 35023.7979379735. The cubic root of 1226666422 is about 1070.4724445832.

The spelling of 1226666422 in words is "one billion, two hundred twenty-six million, six hundred sixty-six thousand, four hundred twenty-two".