1222775376 has 20 divisors (see below), whose sum is σ = 3158836512. Its totient is φ = 407591776.

The previous prime is 1222775369. The next prime is 1222775423. The reversal of 1222775376 is 6735772221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12737196 + ... + 12737291.

Almost surely, 2^1222775376 is an apocalyptic number.

1222775376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1222775376 is an abundant number, since it is smaller than the sum of its proper divisors (1936061136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1222775376 is a wasteful number, since it uses less digits than its factorization.

1222775376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25474498 (or 25474492 counting only the distinct ones).

The product of its digits is 246960, while the sum is 42.

The square root of 1222775376 is about 34968.2052155955. The cubic root of 1222775376 is about 1069.3393820108.

The spelling of 1222775376 in words is "one billion, two hundred twenty-two million, seven hundred seventy-five thousand, three hundred seventy-six".