1220033231 has 8 divisors (see below), whose sum is σ = 1225147728. Its totient is φ = 1214928000.

The previous prime is 1220033189. The next prime is 1220033233. The reversal of 1220033231 is 1323300221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1220033231 - 2⁶ = 1220033167 is a prime.

It is a super-2 number, since 2×1220033231² = 2976962169488598722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220033233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 389351 + ... + 392471.

It is an arithmetic number, because the mean of its divisors is an integer number (153143466).

Almost surely, 2^1220033231 is an apocalyptic number.

1220033231 is a deficient number, since it is larger than the sum of its proper divisors (5114497).

1220033231 is a wasteful number, since it uses less digits than its factorization.

1220033231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4633.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1220033231 is about 34928.9740902879. The cubic root of 1220033231 is about 1068.5394317852.

Adding to 1220033231 its reverse (1323300221), we get a palindrome (2543333452).

The spelling of 1220033231 in words is "one billion, two hundred twenty million, thirty-three thousand, two hundred thirty-one".