1133501550221 has 4 divisors (see below), whose sum is σ = 1164136727292. Its totient is φ = 1102866373152.

The previous prime is 1133501550197. The next prime is 1133501550263. The reversal of 1133501550221 is 1220551053311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 937965132196 + 195536418025 = 968486^2 + 442195^2 .

It is a cyclic number.

It is not a de Polignac number, because 1133501550221 - 2³⁴ = 1116321681037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1133501550721) 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, 15317588480 + ... + 15317588553.

It is an arithmetic number, because the mean of its divisors is an integer number (291034181823).

Almost surely, 2^{1133501550221} is an apocalyptic number.

It is an amenable number.

1133501550221 is a deficient number, since it is larger than the sum of its proper divisors (30635177071).

1133501550221 is an equidigital number, since it uses as much as digits as its factorization.

1133501550221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30635177070.

The product of its (nonzero) digits is 4500, while the sum is 29.

The spelling of 1133501550221 in words is "one trillion, one hundred thirty-three billion, five hundred one million, five hundred fifty thousand, two hundred twenty-one".