1111210001 has 8 divisors (see below), whose sum is σ = 1212477984. Its totient is φ = 1009983520.

The previous prime is 1111209991. The next prime is 1111210027. The reversal of 1111210001 is 1000121111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1111210001 - 2²⁶ = 1044101137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111210901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79526 + ... + 92448.

It is an arithmetic number, because the mean of its divisors is an integer number (151559748).

Almost surely, 2^1111210001 is an apocalyptic number.

1111210001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1111210001 is a deficient number, since it is larger than the sum of its proper divisors (101267983).

1111210001 is a wasteful number, since it uses less digits than its factorization.

1111210001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20751.

The product of its (nonzero) digits is 2, while the sum is 8.

The square root of 1111210001 is about 33334.8166486633. The cubic root of 1111210001 is about 1035.7748951275.

Adding to 1111210001 its reverse (1000121111), we get a palindrome (2111331112).

It can be divided in two parts, 1111 and 210001, that added together give a palindrome (211112).

The spelling of 1111210001 in words is "one billion, one hundred eleven million, two hundred ten thousand, one".