111220021211102 has 4 divisors (see below), whose sum is σ = 166830031816656. Its totient is φ = 55610010605550.

The previous prime is 111220021211021. The next prime is 111220021211129. The reversal of 111220021211102 is 201112120022111.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27805005302774 + ... + 27805005302777.

It is an arithmetic number, because the mean of its divisors is an integer number (41707507954164).

Almost surely, 2^{111220021211102} is an apocalyptic number.

111220021211102 is a deficient number, since it is larger than the sum of its proper divisors (55610010605554).

111220021211102 is an equidigital number, since it uses as much as digits as its factorization.

111220021211102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55610010605553.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 111220021211102 its reverse (201112120022111), we get a palindrome (312332141233213).

The spelling of 111220021211102 in words is "one hundred eleven trillion, two hundred twenty billion, twenty-one million, two hundred eleven thousand, one hundred two".