111220020122220 has 36 divisors (see below), whose sum is σ = 337367394371280. Its totient is φ = 29658672032544.

The previous prime is 111220020122209. The next prime is 111220020122273. The reversal of 111220020122220 is 22221020022111.

It is a happy number.

111220020122220 is a `hidden beast` number, since 1 + 1 + 1 + 220 + 0 + 201 + 22 + 220 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 111220020122193 and 111220020122202.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 308944500160 + ... + 308944500519.

Almost surely, 2^{111220020122220} is an apocalyptic number.

111220020122220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111220020122220 is an abundant number, since it is smaller than the sum of its proper divisors (226147374249060).

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

111220020122220 is a wasteful number, since it uses less digits than its factorization.

111220020122220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617889000694 (or 617889000689 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 111220020122220 its reverse (22221020022111), we get a palindrome (133441040144331).

The spelling of 111220020122220 in words is "one hundred eleven trillion, two hundred twenty billion, twenty million, one hundred twenty-two thousand, two hundred twenty".