101223012 has 48 divisors (see below), whose sum is σ = 258253632. Its totient is φ = 30602880.

The previous prime is 101223011. The next prime is 101223019. The reversal of 101223012 is 210322101.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (101223011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99418 + ... + 100430.

It is an arithmetic number, because the mean of its divisors is an integer number (5380284).

Almost surely, 2^101223012 is an apocalyptic number.

101223012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

101223012 is an abundant number, since it is smaller than the sum of its proper divisors (157030620).

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

101223012 is a wasteful number, since it uses less digits than its factorization.

101223012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1788 (or 1786 counting only the distinct ones).

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

The square root of 101223012 is about 10060.9647648722. The cubic root of 101223012 is about 466.0434608596.

Adding to 101223012 its reverse (210322101), we get a palindrome (311545113).

The spelling of 101223012 in words is "one hundred one million, two hundred twenty-three thousand, twelve".