106216215 has 16 divisors (see below), whose sum is σ = 194224128. Its totient is φ = 48555936.

The previous prime is 106216207. The next prime is 106216217. The reversal of 106216215 is 512612601.

It is not a de Polignac number, because 106216215 - 2³ = 106216207 is a prime.

It is a super-2 number, since 2×106216215² = 22563768657852450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106216217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 505687 + ... + 505896.

It is an arithmetic number, because the mean of its divisors is an integer number (12139008).

Almost surely, 2^106216215 is an apocalyptic number.

106216215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

106216215 is a deficient number, since it is larger than the sum of its proper divisors (88007913).

106216215 is a wasteful number, since it uses less digits than its factorization.

106216215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011598.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 106216215 is about 10306.1251205291. The cubic root of 106216215 is about 473.5839117693.

Adding to 106216215 its reverse (512612601), we get a palindrome (618828816).

It can be divided in two parts, 10621 and 6215, that added together give a triangular number (16836 = T₁₈₃).

The spelling of 106216215 in words is "one hundred six million, two hundred sixteen thousand, two hundred fifteen".