1122001236540 has 144 divisors (see below), whose sum is σ = 3582930798720. Its totient is φ = 283421255040.

The previous prime is 1122001236533. The next prime is 1122001236581. The reversal of 1122001236540 is 456321002211.

1122001236540 is a `hidden beast` number, since 1 + 1 + 2 + 2 + 0 + 0 + 1 + 2 + 3 + 654 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 52886535 + ... + 52907745.

It is an arithmetic number, because the mean of its divisors is an integer number (24881463880).

Almost surely, 2^{1122001236540} is an apocalyptic number.

1122001236540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122001236540 is an abundant number, since it is smaller than the sum of its proper divisors (2460929562180).

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

1122001236540 is a wasteful number, since it uses less digits than its factorization.

1122001236540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36712 (or 36707 counting only the distinct ones).

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

Adding to 1122001236540 its reverse (456321002211), we get a palindrome (1578322238751).

The spelling of 1122001236540 in words is "one trillion, one hundred twenty-two billion, one million, two hundred thirty-six thousand, five hundred forty".