221010032 has 10 divisors (see below), whose sum is σ = 428206968. Its totient is φ = 110505008.

The previous prime is 221010011. The next prime is 221010037. The reversal of 221010032 is 230010122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 221009995 and 221010022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221010037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6906548 + ... + 6906579.

Almost surely, 2^221010032 is an apocalyptic number.

It is an amenable number.

221010032 is a deficient number, since it is larger than the sum of its proper divisors (207196936).

221010032 is a wasteful number, since it uses less digits than its factorization.

221010032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13813135 (or 13813129 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 221010032 is about 14866.4061561630. The cubic root of 221010032 is about 604.6035077141.

Adding to 221010032 its reverse (230010122), we get a palindrome (451020154).

The spelling of 221010032 in words is "two hundred twenty-one million, ten thousand, thirty-two".