1126872122 has 4 divisors (see below), whose sum is σ = 1690308186. Its totient is φ = 563436060.

The previous prime is 1126872119. The next prime is 1126872127. The reversal of 1126872122 is 2212786211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2212786211 = 547 ⋅4045313.

It can be written as a sum of positive squares in only one way, i.e., 1116829561 + 10042561 = 33419^2 + 3169^2 .

It is not an unprimeable number, because it can be changed into a prime (1126872127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 281718029 + ... + 281718032.

Almost surely, 2^1126872122 is an apocalyptic number.

1126872122 is a deficient number, since it is larger than the sum of its proper divisors (563436064).

1126872122 is an equidigital number, since it uses as much as digits as its factorization.

1126872122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563436063.

The product of its digits is 5376, while the sum is 32.

The square root of 1126872122 is about 33568.9160087126. The cubic root of 1126872122 is about 1040.6185059814.

The spelling of 1126872122 in words is "one billion, one hundred twenty-six million, eight hundred seventy-two thousand, one hundred twenty-two".