1221033022 has 48 divisors (see below), whose sum is σ = 2122960896. Its totient is φ = 525531600.

The previous prime is 1221033019. The next prime is 1221033061. The reversal of 1221033022 is 2203301221.

It is a junction number, because it is equal to n+sod(n) for n = 1221032987 and 1221033005.

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 23 ways as a sum of consecutive naturals, for example, 350863 + ... + 354325.

It is an arithmetic number, because the mean of its divisors is an integer number (44228352).

Almost surely, 2^1221033022 is an apocalyptic number.

1221033022 is a deficient number, since it is larger than the sum of its proper divisors (901927874).

1221033022 is a wasteful number, since it uses less digits than its factorization.

1221033022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3565 (or 3554 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1221033022 is about 34943.2829310584. The cubic root of 1221033022 is about 1068.8312337876.

Adding to 1221033022 its reverse (2203301221), we get a palindrome (3424334243).

The spelling of 1221033022 in words is "one billion, two hundred twenty-one million, thirty-three thousand, twenty-two".