1122420845 has 32 divisors (see below), whose sum is σ = 1659909888. Its totient is φ = 709521408.

The previous prime is 1122420833. The next prime is 1122420847. The reversal of 1122420845 is 5480242211.

It is a cyclic number.

It is not a de Polignac number, because 1122420845 - 2⁸ = 1122420589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122420847) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 552722 + ... + 554748.

It is an arithmetic number, because the mean of its divisors is an integer number (51872184).

Almost surely, 2^1122420845 is an apocalyptic number.

It is an amenable number.

1122420845 is a deficient number, since it is larger than the sum of its proper divisors (537489043).

1122420845 is a wasteful number, since it uses less digits than its factorization.

1122420845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3269.

The product of its (nonzero) digits is 5120, while the sum is 29.

The square root of 1122420845 is about 33502.5498283340. The cubic root of 1122420845 is about 1039.2465095088.

The spelling of 1122420845 in words is "one billion, one hundred twenty-two million, four hundred twenty thousand, eight hundred forty-five".