101216812 has 24 divisors (see below), whose sum is σ = 181675872. Its totient is φ = 49324800.

The previous prime is 101216809. The next prime is 101216837. The reversal of 101216812 is 218612101.

It is a super-3 number, since 3×101216812³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25737 + ... + 29407.

It is an arithmetic number, because the mean of its divisors is an integer number (7569828).

Almost surely, 2^101216812 is an apocalyptic number.

It is an amenable number.

101216812 is a deficient number, since it is larger than the sum of its proper divisors (80459060).

101216812 is a wasteful number, since it uses less digits than its factorization.

101216812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3849 (or 3847 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 22.

The square root of 101216812 is about 10060.6566386096. The cubic root of 101216812 is about 466.0339454725.

Adding to 101216812 its reverse (218612101), we get a palindrome (319828913).

The spelling of 101216812 in words is "one hundred one million, two hundred sixteen thousand, eight hundred twelve".