1122521436 has 24 divisors (see below), whose sum is σ = 2910241040. Its totient is φ = 374173776.

The previous prime is 1122521401. The next prime is 1122521453. The reversal of 1122521436 is 6341252211.

1122521436 is a `hidden beast` number, since 1 + 1 + 225 + 2 + 1 + 436 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5196751 + ... + 5196966.

Almost surely, 2^1122521436 is an apocalyptic number.

It is an amenable number.

1122521436 is an abundant number, since it is smaller than the sum of its proper divisors (1787719604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1122521436 is a wasteful number, since it uses less digits than its factorization.

1122521436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10393730 (or 10393722 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 1122521436 is about 33504.0510386431. The cubic root of 1122521436 is about 1039.2775542289.

Adding to 1122521436 its reverse (6341252211), we get a palindrome (7463773647).

The spelling of 1122521436 in words is "one billion, one hundred twenty-two million, five hundred twenty-one thousand, four hundred thirty-six".