101221232 has 20 divisors (see below), whose sum is σ = 224132976. Its totient is φ = 43380480.

The previous prime is 101221201. The next prime is 101221259. The reversal of 101221232 is 232122101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 451769 + ... + 451992.

Almost surely, 2^101221232 is an apocalyptic number.

It is an amenable number.

101221232 is an abundant number, since it is smaller than the sum of its proper divisors (122911744).

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

101221232 is an equidigital number, since it uses as much as digits as its factorization.

101221232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903776 (or 903770 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 101221232 is about 10060.8763037819. The cubic root of 101221232 is about 466.0407290624.

Adding to 101221232 its reverse (232122101), we get a palindrome (333343333).

The spelling of 101221232 in words is "one hundred one million, two hundred twenty-one thousand, two hundred thirty-two".