111022020220 has 24 divisors (see below), whose sum is σ = 233891131824. Its totient is φ = 44266924416.

The previous prime is 111022020157. The next prime is 111022020227. The reversal of 111022020220 is 22020220111.

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 111022020220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111022020227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8861314 + ... + 8873833.

It is an arithmetic number, because the mean of its divisors is an integer number (9745463826).

Almost surely, 2^111022020220 is an apocalyptic number.

111022020220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111022020220 is an abundant number, since it is smaller than the sum of its proper divisors (122869111604).

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

111022020220 is a wasteful number, since it uses less digits than its factorization.

111022020220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17735469 (or 17735467 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 111022020220 its reverse (22020220111), we get a palindrome (133042240331).

The spelling of 111022020220 in words is "one hundred eleven billion, twenty-two million, twenty thousand, two hundred twenty".