1136301221 has 4 divisors (see below), whose sum is σ = 1239601344. Its totient is φ = 1033001100.

The previous prime is 1136301217. The next prime is 1136301227. The reversal of 1136301221 is 1221036311.

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 1136301221 - 2² = 1136301217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1136301193 and 1136301202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1136301227) 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, 51650045 + ... + 51650066.

It is an arithmetic number, because the mean of its divisors is an integer number (309900336).

Almost surely, 2^1136301221 is an apocalyptic number.

1136301221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1136301221 is a deficient number, since it is larger than the sum of its proper divisors (103300123).

1136301221 is a wasteful number, since it uses less digits than its factorization.

1136301221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103300122.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 1136301221 is about 33709.0673409989. The cubic root of 1136301221 is about 1043.5129053490.

Adding to 1136301221 its reverse (1221036311), we get a palindrome (2357337532).

The spelling of 1136301221 in words is "one billion, one hundred thirty-six million, three hundred one thousand, two hundred twenty-one".