55222101 has 24 divisors (see below), whose sum is σ = 89929280. Its totient is φ = 33465960.

The previous prime is 55222043. The next prime is 55222109. The reversal of 55222101 is 10122255.

It is not a de Polignac number, because 55222101 - 2⁷ = 55221973 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55222109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5185 + ... + 11718.

Almost surely, 2^55222101 is an apocalyptic number.

It is an amenable number.

55222101 is a deficient number, since it is larger than the sum of its proper divisors (34707179).

55222101 is a wasteful number, since it uses less digits than its factorization.

55222101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16934 (or 16917 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 55222101 is about 7431.1574468585. The cubic root of 55222101 is about 380.8064613168.

Adding to 55222101 its reverse (10122255), we get a palindrome (65344356).

The spelling of 55222101 in words is "fifty-five million, two hundred twenty-two thousand, one hundred one".