111101100012220 has 24 divisors (see below), whose sum is σ = 233980826688000. Its totient is φ = 44313103497792.

The previous prime is 111101100012121. The next prime is 111101100012317. The reversal of 111101100012220 is 22210001101111.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 111101100012220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7958524540 + ... + 7958538499.

It is an arithmetic number, because the mean of its divisors is an integer number (9749201112000).

Almost surely, 2^{111101100012220} is an apocalyptic number.

111101100012220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111101100012220 is an abundant number, since it is smaller than the sum of its proper divisors (122879726675780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111101100012220 is a wasteful number, since it uses less digits than its factorization.

111101100012220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15917063397 (or 15917063395 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 111101100012220 its reverse (22210001101111), we get a palindrome (133311101113331).

The spelling of 111101100012220 in words is "one hundred eleven trillion, one hundred one billion, one hundred million, twelve thousand, two hundred twenty".