9021223540 has 24 divisors (see below), whose sum is σ = 21650936832. Its totient is φ = 3092990880.

The previous prime is 9021223529. The next prime is 9021223559. The reversal of 9021223540 is 453221209.

9021223540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 9021223499 and 9021223508.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32218516 + ... + 32218795.

It is an arithmetic number, because the mean of its divisors is an integer number (902122368).

Almost surely, 2^9021223540 is an apocalyptic number.

It is an amenable number.

9021223540 is an abundant number, since it is smaller than the sum of its proper divisors (12629713292).

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

9021223540 is a wasteful number, since it uses less digits than its factorization.

9021223540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64437327 (or 64437325 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 9021223540 is about 94980.1218150409. The cubic root of 9021223540 is about 2081.7176040058.

Adding to 9021223540 its reverse (453221209), we get a palindrome (9474444749).

The spelling of 9021223540 in words is "nine billion, twenty-one million, two hundred twenty-three thousand, five hundred forty".