101222255 has 16 divisors (see below), whose sum is σ = 124433280. Its totient is φ = 79011072.

The previous prime is 101222243. The next prime is 101222257. The reversal of 101222255 is 552222101.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 101222255 - 2⁴ = 101222239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101222257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133337 + ... + 134093.

It is an arithmetic number, because the mean of its divisors is an integer number (7777080).

Almost surely, 2^101222255 is an apocalyptic number.

101222255 is a deficient number, since it is larger than the sum of its proper divisors (23211025).

101222255 is an equidigital number, since it uses as much as digits as its factorization.

101222255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 101222255 is about 10060.9271441553. The cubic root of 101222255 is about 466.0422990824.

Adding to 101222255 its reverse (552222101), we get a palindrome (653444356).

The spelling of 101222255 in words is "one hundred one million, two hundred twenty-two thousand, two hundred fifty-five".