111020211022220 has 12 divisors (see below), whose sum is σ = 233142443146704. Its totient is φ = 44408084408880.

The previous prime is 111020211022181. The next prime is 111020211022247. The reversal of 111020211022220 is 22220112020111.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2775505275536 + ... + 2775505275575.

It is an arithmetic number, because the mean of its divisors is an integer number (19428536928892).

Almost surely, 2^{111020211022220} is an apocalyptic number.

111020211022220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111020211022220 is an abundant number, since it is smaller than the sum of its proper divisors (122122232124484).

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

111020211022220 is a wasteful number, since it uses less digits than its factorization.

111020211022220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5551010551120 (or 5551010551118 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 111020211022220 its reverse (22220112020111), we get a palindrome (133240323042331).

The spelling of 111020211022220 in words is "one hundred eleven trillion, twenty billion, two hundred eleven million, twenty-two thousand, two hundred twenty".