111101001022220 has 24 divisors (see below), whose sum is σ = 254522293251408. Its totient is φ = 40400364008000.

The previous prime is 111101001022181. The next prime is 111101001022259. The reversal of 111101001022220 is 22220100101111.

It is an interprime number because it is at equal distance from previous prime (111101001022181) and next prime (111101001022259).

It is a junction number, because it is equal to n+sod(n) for n = 111101001022195 and 111101001022204.

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, 252502274831 + ... + 252502275270.

It is an arithmetic number, because the mean of its divisors is an integer number (10605095552142).

Almost surely, 2^{111101001022220} is an apocalyptic number.

111101001022220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111101001022220 is an abundant number, since it is smaller than the sum of its proper divisors (143421292229188).

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

111101001022220 is a wasteful number, since it uses less digits than its factorization.

111101001022220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505004550121 (or 505004550119 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111101001022220 its reverse (22220100101111), we get a palindrome (133321101123331).

The spelling of 111101001022220 in words is "one hundred eleven trillion, one hundred one billion, one million, twenty-two thousand, two hundred twenty".