1222379571 has 16 divisors (see below), whose sum is σ = 1864816128. Its totient is φ = 697699200.

The previous prime is 1222379539. The next prime is 1222379581. The reversal of 1222379571 is 1759732221.

It is not a de Polignac number, because 1222379571 - 2⁵ = 1222379539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1222379531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14535 + ... + 51536.

It is an arithmetic number, because the mean of its divisors is an integer number (116551008).

Almost surely, 2^1222379571 is an apocalyptic number.

1222379571 is a deficient number, since it is larger than the sum of its proper divisors (642436557).

1222379571 is an equidigital number, since it uses as much as digits as its factorization.

1222379571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66962.

The product of its digits is 52920, while the sum is 39.

The square root of 1222379571 is about 34962.5452591770. The cubic root of 1222379571 is about 1069.2239899940.

The spelling of 1222379571 in words is "one billion, two hundred twenty-two million, three hundred seventy-nine thousand, five hundred seventy-one".