1021133223 has 80 divisors (see below), whose sum is σ = 1714521600. Its totient is φ = 600462720.

The previous prime is 1021133221. The next prime is 1021133251. The reversal of 1021133223 is 3223311201.

It is not a de Polignac number, because 1021133223 - 2¹ = 1021133221 is a prime.

It is a super-2 number, since 2×1021133223² = 2085426118228735458, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1021133196 and 1021133205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021133221) 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 79 ways as a sum of consecutive naturals, for example, 6264540 + ... + 6264702.

It is an arithmetic number, because the mean of its divisors is an integer number (21431520).

Almost surely, 2^1021133223 is an apocalyptic number.

1021133223 is a deficient number, since it is larger than the sum of its proper divisors (693388377).

1021133223 is a wasteful number, since it uses less digits than its factorization.

1021133223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354 (or 345 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1021133223 is about 31955.1752146659. The cubic root of 1021133223 is about 1006.9953585198.

Adding to 1021133223 its reverse (3223311201), we get a palindrome (4244444424).

It can be divided in two parts, 10211 and 33223, that added together give a palindrome (43434).

The spelling of 1021133223 in words is "one billion, twenty-one million, one hundred thirty-three thousand, two hundred twenty-three".