22222101 has 8 divisors (see below), whose sum is σ = 32323104. Its totient is φ = 13467920.

The previous prime is 22222097. The next prime is 22222129. The reversal of 22222101 is 10122222.

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 22222101 - 2² = 22222097 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22222601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 336666 + ... + 336731.

It is an arithmetic number, because the mean of its divisors is an integer number (4040388).

Almost surely, 2^22222101 is an apocalyptic number.

It is an amenable number.

22222101 is a deficient number, since it is larger than the sum of its proper divisors (10101003).

22222101 is a wasteful number, since it uses less digits than its factorization.

22222101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673411.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 22222101 is about 4714.0323503345. The cubic root of 22222101 is about 281.1437105524.

Adding to 22222101 its reverse (10122222), we get a palindrome (32344323).

It can be divided in two parts, 22222 and 101, that multiplied together give a palindrome (2244422).

The spelling of 22222101 in words is "twenty-two million, two hundred twenty-two thousand, one hundred one".