1256441122 has 16 divisors (see below), whose sum is σ = 1912176000. Its totient is φ = 619079760.

The previous prime is 1256441119. The next prime is 1256441189. The reversal of 1256441122 is 2211446521.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78129 + ... + 92827.

It is an arithmetic number, because the mean of its divisors is an integer number (119511000).

Almost surely, 2^1256441122 is an apocalyptic number.

1256441122 is a deficient number, since it is larger than the sum of its proper divisors (655734878).

1256441122 is a wasteful number, since it uses less digits than its factorization.

1256441122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15321.

The product of its digits is 3840, while the sum is 28.

The square root of 1256441122 is about 35446.3132356526. The cubic root of 1256441122 is about 1079.0644395671.

Adding to 1256441122 its reverse (2211446521), we get a palindrome (3467887643).

The spelling of 1256441122 in words is "one billion, two hundred fifty-six million, four hundred forty-one thousand, one hundred twenty-two".