111122210001 has 64 divisors (see below), whose sum is σ = 168301253376. Its totient is φ = 64623744000.

The previous prime is 111122209997. The next prime is 111122210009. The reversal of 111122210001 is 100012221111.

It is not a de Polignac number, because 111122210001 - 2² = 111122209997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111122210009) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 34158291 + ... + 34161543.

It is an arithmetic number, because the mean of its divisors is an integer number (2629707084).

Almost surely, 2^111122210001 is an apocalyptic number.

111122210001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111122210001 is a deficient number, since it is larger than the sum of its proper divisors (57179043375).

111122210001 is a wasteful number, since it uses less digits than its factorization.

111122210001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3682.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 111122210001 its reverse (100012221111), we get a palindrome (211134431112).

It can be divided in two parts, 111122 and 210001, that added together give a palindrome (321123).

The spelling of 111122210001 in words is "one hundred eleven billion, one hundred twenty-two million, two hundred ten thousand, one".