1255601122 has 8 divisors (see below), whose sum is σ = 1944156672. Its totient is φ = 607548900.

The previous prime is 1255601107. The next prime is 1255601129. The reversal of 1255601122 is 2211065521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1255601129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10125754 + ... + 10125877.

It is an arithmetic number, because the mean of its divisors is an integer number (243019584).

Almost surely, 2^1255601122 is an apocalyptic number.

1255601122 is a deficient number, since it is larger than the sum of its proper divisors (688555550).

1255601122 is a wasteful number, since it uses less digits than its factorization.

1255601122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20251664.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 1255601122 is about 35434.4623495263. The cubic root of 1255601122 is about 1078.8239146474.

Adding to 1255601122 its reverse (2211065521), we get a palindrome (3466666643).

The spelling of 1255601122 in words is "one billion, two hundred fifty-five million, six hundred one thousand, one hundred twenty-two".