1153222201 has 4 divisors (see below), whose sum is σ = 1172768400. Its totient is φ = 1133676004.

The previous prime is 1153222199. The next prime is 1153222237. The reversal of 1153222201 is 1022223511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1153222201 - 2¹ = 1153222199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1153252201) 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, 9773011 + ... + 9773128.

It is an arithmetic number, because the mean of its divisors is an integer number (293192100).

Almost surely, 2^1153222201 is an apocalyptic number.

It is an amenable number.

1153222201 is a deficient number, since it is larger than the sum of its proper divisors (19546199).

1153222201 is an equidigital number, since it uses as much as digits as its factorization.

1153222201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19546198.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1153222201 is about 33959.1254451583. The cubic root of 1153222201 is about 1048.6671526680.

Adding to 1153222201 its reverse (1022223511), we get a palindrome (2175445712).

It can be divided in two parts, 11532 and 22201, that added together give a palindrome (33733).

The spelling of 1153222201 in words is "one billion, one hundred fifty-three million, two hundred twenty-two thousand, two hundred one".