1157222 has 16 divisors (see below), whose sum is σ = 1976832. Its totient is φ = 502920.

The previous prime is 1157213. The next prime is 1157227. The reversal of 1157222 is 2227511.

It is a junction number, because it is equal to n+sod(n) for n = 1157194 and 1157203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1157227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 638 + ... + 1649.

It is an arithmetic number, because the mean of its divisors is an integer number (123552).

2^1157222 is an apocalyptic number.

1157222 is a deficient number, since it is larger than the sum of its proper divisors (819610).

1157222 is a wasteful number, since it uses less digits than its factorization.

1157222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2323.

The product of its digits is 280, while the sum is 20.

The square root of 1157222 is about 1075.7425342525. The cubic root of 1157222 is about 104.9878141565.

It can be divided in two parts, 115 and 7222, that added together give a palindrome (7337).

The spelling of 1157222 in words is "one million, one hundred fifty-seven thousand, two hundred twenty-two".