1122001501 has 4 divisors (see below), whose sum is σ = 1122359392. Its totient is φ = 1121643612.

The previous prime is 1122001499. The next prime is 1122001511. The reversal of 1122001501 is 1051002211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1051002211 = 7 ⋅150143173.

It is a cyclic number.

It is not a de Polignac number, because 1122001501 - 2¹ = 1122001499 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 (1122001511) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 174201 + ... + 180526.

It is an arithmetic number, because the mean of its divisors is an integer number (280589848).

Almost surely, 2^1122001501 is an apocalyptic number.

It is an amenable number.

1122001501 is a deficient number, since it is larger than the sum of its proper divisors (357891).

1122001501 is an equidigital number, since it uses as much as digits as its factorization.

1122001501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357890.

The product of its (nonzero) digits is 20, while the sum is 13.

The square root of 1122001501 is about 33496.2908543618. The cubic root of 1122001501 is about 1039.1170702187.

Adding to 1122001501 its reverse (1051002211), we get a palindrome (2173003712).

The spelling of 1122001501 in words is "one billion, one hundred twenty-two million, one thousand, five hundred one".