101520216 has 80 divisors (see below), whose sum is σ = 324986640. Its totient is φ = 29004480.

The previous prime is 101520203. The next prime is 101520227. The reversal of 101520216 is 612025101.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 19 ways as a sum of consecutive naturals, for example, 6655 + ... + 15726.

It is an arithmetic number, because the mean of its divisors is an integer number (4062333).

Almost surely, 2^101520216 is an apocalyptic number.

It is an amenable number.

101520216 is an abundant number, since it is smaller than the sum of its proper divisors (223466424).

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

101520216 is a wasteful number, since it uses less digits than its factorization.

101520216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22406 (or 22393 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 101520216 is about 10075.7240930863. The cubic root of 101520216 is about 466.4991366905.

Adding to 101520216 its reverse (612025101), we get a palindrome (713545317).

The spelling of 101520216 in words is "one hundred one million, five hundred twenty thousand, two hundred sixteen".