1010533221 has 36 divisors (see below), whose sum is σ = 1607624928. Its totient is φ = 610437168.

The previous prime is 1010533219. The next prime is 1010533231. The reversal of 1010533221 is 1223350101.

It is not a de Polignac number, because 1010533221 - 2¹ = 1010533219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1010533194 and 1010533203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010533211) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 67966 + ... + 81488.

It is an arithmetic number, because the mean of its divisors is an integer number (44656248).

Almost surely, 2^1010533221 is an apocalyptic number.

It is an amenable number.

1010533221 is a deficient number, since it is larger than the sum of its proper divisors (597091707).

1010533221 is a wasteful number, since it uses less digits than its factorization.

1010533221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13590 (or 13568 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 1010533221 is about 31788.8851802010. The cubic root of 1010533221 is about 1003.4988176644.

Adding to 1010533221 its reverse (1223350101), we get a palindrome (2233883322).

The spelling of 1010533221 in words is "one billion, ten million, five hundred thirty-three thousand, two hundred twenty-one".