1112222001 has 16 divisors (see below), whose sum is σ = 1618617600. Its totient is φ = 673723920.

The previous prime is 1112221997. The next prime is 1112222051. The reversal of 1112222001 is 1002222111.

It is not a de Polignac number, because 1112222001 - 2² = 1112221997 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1112222051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65050 + ... + 80348.

It is an arithmetic number, because the mean of its divisors is an integer number (101163600).

Almost surely, 2^1112222001 is an apocalyptic number.

1112222001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1112222001 is a deficient number, since it is larger than the sum of its proper divisors (506395599).

1112222001 is a wasteful number, since it uses less digits than its factorization.

1112222001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17516.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1112222001 is about 33349.9925187398. The cubic root of 1112222001 is about 1036.0892329956.

Adding to 1112222001 its reverse (1002222111), we get a palindrome (2114444112).

It can be divided in two parts, 111222 and 2001, that multiplied together give a palindrome (222555222).

The spelling of 1112222001 in words is "one billion, one hundred twelve million, two hundred twenty-two thousand, one".