101220230 has 16 divisors (see below), whose sum is σ = 182619360. Its totient is φ = 40394112.

The previous prime is 101220169. The next prime is 101220233. The reversal of 101220230 is 32022101.

It is a happy number.

It is a super-2 number, since 2×101220230² = 20491069922505800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101220233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7139 + ... + 15918.

It is an arithmetic number, because the mean of its divisors is an integer number (11413710).

Almost surely, 2^101220230 is an apocalyptic number.

101220230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101220230 is a deficient number, since it is larger than the sum of its proper divisors (81399130).

101220230 is a wasteful number, since it uses less digits than its factorization.

101220230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23503.

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

The square root of 101220230 is about 10060.8265068035. The cubic root of 101220230 is about 466.0391912614.

Adding to 101220230 its reverse (32022101), we get a palindrome (133242331).

The spelling of 101220230 in words is "one hundred one million, two hundred twenty thousand, two hundred thirty".