111100210001 has 16 divisors (see below), whose sum is σ = 122761517760. Its totient is φ = 99701123520.

The previous prime is 111100209989. The next prime is 111100210019. The reversal of 111100210001 is 100012001111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 111100210001 - 2¹⁸ = 111099947857 is a prime.

It is a super-4 number, since 4×111100210001⁴ (a number of 45 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111100210031) 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, 1072571 + ... + 1171583.

It is an arithmetic number, because the mean of its divisors is an integer number (7672594860).

Almost surely, 2^111100210001 is an apocalyptic number.

111100210001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111100210001 is a deficient number, since it is larger than the sum of its proper divisors (11661307759).

111100210001 is a wasteful number, since it uses less digits than its factorization.

111100210001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100336.

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

Adding to 111100210001 its reverse (100012001111), we get a palindrome (211112211112).

The spelling of 111100210001 in words is "one hundred eleven billion, one hundred million, two hundred ten thousand, one".