101216560 has 40 divisors (see below), whose sum is σ = 245564640. Its totient is φ = 38725632.

The previous prime is 101216551. The next prime is 101216569. The reversal of 101216560 is 65612101.

It is an interprime number because it is at equal distance from previous prime (101216551) and next prime (101216569).

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

It is not an unprimeable number, because it can be changed into a prime (101216569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25665 + ... + 29344.

It is an arithmetic number, because the mean of its divisors is an integer number (6139116).

Almost surely, 2^101216560 is an apocalyptic number.

101216560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101216560 is an abundant number, since it is smaller than the sum of its proper divisors (144348080).

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

101216560 is a wasteful number, since it uses less digits than its factorization.

101216560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55045 (or 55039 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 101216560 is about 10060.6441145684. The cubic root of 101216560 is about 466.0335587098.

Adding to 101216560 its reverse (65612101), we get a palindrome (166828661).

The spelling of 101216560 in words is "one hundred one million, two hundred sixteen thousand, five hundred sixty".