101216240 has 40 divisors (see below), whose sum is σ = 242924928. Its totient is φ = 39179520.

The previous prime is 101216237. The next prime is 101216243. The reversal of 101216240 is 42612101.

It is an interprime number because it is at equal distance from previous prime (101216237) and next prime (101216243).

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101216243) 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, 17927 + ... + 22886.

Almost surely, 2^101216240 is an apocalyptic number.

101216240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101216240 is an abundant number, since it is smaller than the sum of its proper divisors (141708688).

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

101216240 is a wasteful number, since it uses less digits than its factorization.

101216240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40857 (or 40851 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 101216240 is about 10060.6282110015. The cubic root of 101216240 is about 466.0330675817.

Adding to 101216240 its reverse (42612101), we get a palindrome (143828341).

It can be divided in two parts, 10121 and 6240, that added together give a palindrome (16361).

The spelling of 101216240 in words is "one hundred one million, two hundred sixteen thousand, two hundred forty".