215200101 has 8 divisors (see below), whose sum is σ = 287002080. Its totient is φ = 143432432.

The previous prime is 215200091. The next prime is 215200133. The reversal of 215200101 is 101002512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 215200101 - 2⁷ = 215199973 is a prime.

It is a super-2 number, since 2×215200101² = 92622166940820402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215200151) 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, 16726 + ... + 26648.

It is an arithmetic number, because the mean of its divisors is an integer number (35875260).

Almost surely, 2^215200101 is an apocalyptic number.

It is an amenable number.

215200101 is a deficient number, since it is larger than the sum of its proper divisors (71801979).

215200101 is an equidigital number, since it uses as much as digits as its factorization.

215200101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17155.

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 215200101 is about 14669.7000991840. The cubic root of 215200101 is about 599.2584366283.

Adding to 215200101 its reverse (101002512), we get a palindrome (316202613).

The spelling of 215200101 in words is "two hundred fifteen million, two hundred thousand, one hundred one".