101771216 has 20 divisors (see below), whose sum is σ = 198209412. Its totient is φ = 50620416.

The previous prime is 101771209. The next prime is 101771221. The reversal of 101771216 is 612177101.

It can be written as a sum of positive squares in 2 ways, for example, as 68823616 + 32947600 = 8296^2 + 5740^2 .

It is a super-2 number, since 2×101771216² = 20714760812237312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13391 + ... + 19566.

Almost surely, 2^101771216 is an apocalyptic number.

101771216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

101771216 is a deficient number, since it is larger than the sum of its proper divisors (96438196).

101771216 is a wasteful number, since it uses less digits than its factorization.

101771216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33158 (or 33152 counting only the distinct ones).

The product of its (nonzero) digits is 588, while the sum is 26.

The square root of 101771216 is about 10088.1720841786. The cubic root of 101771216 is about 466.8832799376.

The spelling of 101771216 in words is "one hundred one million, seven hundred seventy-one thousand, two hundred sixteen".