1222110001 has 32 divisors (see below), whose sum is σ = 1513451520. Its totient is φ = 963446400.

The previous prime is 1222109989. The next prime is 1222110017. The reversal of 1222110001 is 1000112221.

It is not a de Polignac number, because 1222110001 - 2²⁹ = 685239089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1222110001.

It is not an unprimeable number, because it can be changed into a prime (1222114001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1477350 + ... + 1478176.

It is an arithmetic number, because the mean of its divisors is an integer number (47295360).

Almost surely, 2^1222110001 is an apocalyptic number.

It is an amenable number.

1222110001 is a deficient number, since it is larger than the sum of its proper divisors (291341519).

1222110001 is a wasteful number, since it uses less digits than its factorization.

1222110001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1165.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1222110001 is about 34958.6899211055. The cubic root of 1222110001 is about 1069.1453859586.

Adding to 1222110001 its reverse (1000112221), we get a palindrome (2222222222).

It can be divided in two parts, 12221 and 10001, that multiplied together give a palindrome (122222221).

The spelling of 1222110001 in words is "one billion, two hundred twenty-two million, one hundred ten thousand, one".