222001101 has 32 divisors (see below), whose sum is σ = 385056000. Its totient is φ = 123759360.

The previous prime is 222001099. The next prime is 222001121. The reversal of 222001101 is 101100222.

It is not a de Polignac number, because 222001101 - 2¹ = 222001099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222001121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6576 + ... + 22073.

It is an arithmetic number, because the mean of its divisors is an integer number (12033000).

Almost surely, 2^222001101 is an apocalyptic number.

222001101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

222001101 is a deficient number, since it is larger than the sum of its proper divisors (163054899).

222001101 is a wasteful number, since it uses less digits than its factorization.

222001101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28706 (or 28700 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 222001101 is about 14899.7013728464. The cubic root of 222001101 is about 605.5058956418.

Adding to 222001101 its reverse (101100222), we get a palindrome (323101323).

The spelling of 222001101 in words is "two hundred twenty-two million, one thousand, one hundred one".