101215412 has 12 divisors (see below), whose sum is σ = 177222276. Its totient is φ = 50580480.

The previous prime is 101215397. The next prime is 101215417. The reversal of 101215412 is 214512101.

It can be written as a sum of positive squares in 2 ways, for example, as 72012196 + 29203216 = 8486^2 + 5404^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101215417) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3188 + ... + 14580.

It is an arithmetic number, because the mean of its divisors is an integer number (14768523).

Almost surely, 2^101215412 is an apocalyptic number.

It is an amenable number.

101215412 is a deficient number, since it is larger than the sum of its proper divisors (76006864).

101215412 is a wasteful number, since it uses less digits than its factorization.

101215412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13618 (or 13616 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 101215412 is about 10060.5870604056. The cubic root of 101215412 is about 466.0317967829.

Adding to 101215412 its reverse (214512101), we get a palindrome (315727513).

The spelling of 101215412 in words is "one hundred one million, two hundred fifteen thousand, four hundred twelve".