1112212101 has 128 divisors (see below), whose sum is σ = 2127605760. Its totient is φ = 497664000.

The previous prime is 1112212091. The next prime is 1112212109. The reversal of 1112212101 is 1012122111.

It is not a de Polignac number, because 1112212101 - 2⁹ = 1112211589 is a prime.

It is a super-2 number, since 2×1112212101² = 2474031515221668402, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112212109) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 5762661 + ... + 5762853.

It is an arithmetic number, because the mean of its divisors is an integer number (16621920).

Almost surely, 2^1112212101 is an apocalyptic number.

1112212101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1112212101 is a deficient number, since it is larger than the sum of its proper divisors (1015393659).

1112212101 is a wasteful number, since it uses less digits than its factorization.

1112212101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347.

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

The square root of 1112212101 is about 33349.8440925891. The cubic root of 1112212101 is about 1036.0861588750.

Adding to 1112212101 its reverse (1012122111), we get a palindrome (2124334212).

The spelling of 1112212101 in words is "one billion, one hundred twelve million, two hundred twelve thousand, one hundred one".