111001021106 has 4 divisors (see below), whose sum is σ = 166501531662. Its totient is φ = 55500510552.

The previous prime is 111001021099. The next prime is 111001021121. The reversal of 111001021106 is 601120100111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 108758146225 + 2242874881 = 329785^2 + 47359^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27750255275 + ... + 27750255278.

Almost surely, 2^111001021106 is an apocalyptic number.

111001021106 is a deficient number, since it is larger than the sum of its proper divisors (55500510556).

111001021106 is an equidigital number, since it uses as much as digits as its factorization.

111001021106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55500510555.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 111001021106 its reverse (601120100111), we get a palindrome (712121121217).

The spelling of 111001021106 in words is "one hundred eleven billion, one million, twenty-one thousand, one hundred six".