101221230 has 64 divisors (see below), whose sum is σ = 280620288. Its totient is φ = 23093760.

The previous prime is 101221201. The next prime is 101221259. The reversal of 101221230 is 32122101.

It is an interprime number because it is at equal distance from previous prime (101221201) and next prime (101221259).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3412 + ... + 14631.

It is an arithmetic number, because the mean of its divisors is an integer number (4384692).

Almost surely, 2^101221230 is an apocalyptic number.

101221230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101221230 is an abundant number, since it is smaller than the sum of its proper divisors (179399058).

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

101221230 is a wasteful number, since it uses less digits than its factorization.

101221230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18081.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 101221230 is about 10060.8762043870. The cubic root of 101221230 is about 466.0407259930.

Adding to 101221230 its reverse (32122101), we get a palindrome (133343331).

The spelling of 101221230 in words is "one hundred one million, two hundred twenty-one thousand, two hundred thirty".