1220533026 has 32 divisors (see below), whose sum is σ = 2494457856. Its totient is φ = 398034000.

The previous prime is 1220532983. The next prime is 1220533031. The reversal of 1220533026 is 6203350221.

It is a junction number, because it is equal to n+sod(n) for n = 1220532987 and 1220533005.

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 15 ways as a sum of consecutive naturals, for example, 44871 + ... + 66741.

It is an arithmetic number, because the mean of its divisors is an integer number (77951808).

Almost surely, 2^1220533026 is an apocalyptic number.

1220533026 is an abundant number, since it is smaller than the sum of its proper divisors (1273924830).

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

1220533026 is a wasteful number, since it uses less digits than its factorization.

1220533026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22078.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 1220533026 is about 34936.1278048956. The cubic root of 1220533026 is about 1068.6853233731.

Adding to 1220533026 its reverse (6203350221), we get a palindrome (7423883247).

The spelling of 1220533026 in words is "one billion, two hundred twenty million, five hundred thirty-three thousand, twenty-six".