221132034 has 24 divisors (see below), whose sum is σ = 479510460. Its totient is φ = 73650528.

The previous prime is 221132033. The next prime is 221132053. The reversal of 221132034 is 430231122.

It can be written as a sum of positive squares in 2 ways, for example, as 216001809 + 5130225 = 14697^2 + 2265^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 221131998 and 221132016.

It is not an unprimeable number, because it can be changed into a prime (221132033) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21424 + ... + 30020.

Almost surely, 2^221132034 is an apocalyptic number.

221132034 is an abundant number, since it is smaller than the sum of its proper divisors (258378426).

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

221132034 is a wasteful number, since it uses less digits than its factorization.

221132034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10034 (or 10031 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 221132034 is about 14870.5088682264. The cubic root of 221132034 is about 604.7147383640.

Adding to 221132034 its reverse (430231122), we get a palindrome (651363156).

The spelling of 221132034 in words is "two hundred twenty-one million, one hundred thirty-two thousand, thirty-four".