1226661412 has 6 divisors (see below), whose sum is σ = 2146657478. Its totient is φ = 613330704.

The previous prime is 1226661409. The next prime is 1226661431. The reversal of 1226661412 is 2141666221.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1116495396 + 110166016 = 33414^2 + 10496^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153332673 + ... + 153332680.

Almost surely, 2^1226661412 is an apocalyptic number.

It is an amenable number.

1226661412 is a deficient number, since it is larger than the sum of its proper divisors (919996066).

1226661412 is a wasteful number, since it uses less digits than its factorization.

1226661412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306665357 (or 306665355 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 1226661412 is about 35023.7264151032. The cubic root of 1226661412 is about 1070.4709872258.

The spelling of 1226661412 in words is "one billion, two hundred twenty-six million, six hundred sixty-one thousand, four hundred twelve".