1222533501 has 16 divisors (see below), whose sum is σ = 1863570048. Its totient is φ = 698342400.

The previous prime is 1222533491. The next prime is 1222533503. The reversal of 1222533501 is 1053352221.

It is a happy number.

It is not a de Polignac number, because 1222533501 - 2⁵ = 1222533469 is a prime.

It is a super-2 number, since 2×1222533501² = 2989176322134634002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222533503) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 61921 + ... + 79241.

It is an arithmetic number, because the mean of its divisors is an integer number (116473128).

Almost surely, 2^1222533501 is an apocalyptic number.

It is an amenable number.

1222533501 is a deficient number, since it is larger than the sum of its proper divisors (641036547).

1222533501 is a wasteful number, since it uses less digits than its factorization.

1222533501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20692.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 1222533501 is about 34964.7465456279. The cubic root of 1222533501 is about 1069.2688693274.

Adding to 1222533501 its reverse (1053352221), we get a palindrome (2275885722).

The spelling of 1222533501 in words is "one billion, two hundred twenty-two million, five hundred thirty-three thousand, five hundred one".