1151204422 has 4 divisors (see below), whose sum is σ = 1726806636. Its totient is φ = 575602210.

The previous prime is 1151204413. The next prime is 1151204423. The reversal of 1151204422 is 2244021511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2244021511 = 23339 ⋅96149.

It is a junction number, because it is equal to n+sod(n) for n = 1151204393 and 1151204402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151204423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 287801104 + ... + 287801107.

It is an arithmetic number, because the mean of its divisors is an integer number (431701659).

Almost surely, 2^1151204422 is an apocalyptic number.

1151204422 is a deficient number, since it is larger than the sum of its proper divisors (575602214).

1151204422 is an equidigital number, since it uses as much as digits as its factorization.

1151204422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575602213.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 1151204422 is about 33929.4035019775. The cubic root of 1151204422 is about 1048.0551821797.

Adding to 1151204422 its reverse (2244021511), we get a palindrome (3395225933).

The spelling of 1151204422 in words is "one billion, one hundred fifty-one million, two hundred four thousand, four hundred twenty-two".