1222831153 has 4 divisors (see below), whose sum is σ = 1222926628. Its totient is φ = 1222735680.

The previous prime is 1222831121. The next prime is 1222831157. The reversal of 1222831153 is 3511382221.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3511382221 = 1493 ⋅2351897.

It can be written as a sum of positive squares in 2 ways, for example, as 1129766544 + 93064609 = 33612^2 + 9647^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222831153 - 2⁵ = 1222831121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222831157) 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, 24876 + ... + 55357.

It is an arithmetic number, because the mean of its divisors is an integer number (305731657).

Almost surely, 2^1222831153 is an apocalyptic number.

It is an amenable number.

1222831153 is a deficient number, since it is larger than the sum of its proper divisors (95475).

1222831153 is an equidigital number, since it uses as much as digits as its factorization.

1222831153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95474.

The product of its digits is 2880, while the sum is 28.

The square root of 1222831153 is about 34969.0027452886. The cubic root of 1222831153 is about 1069.3556410984.

The spelling of 1222831153 in words is "one billion, two hundred twenty-two million, eight hundred thirty-one thousand, one hundred fifty-three".