111000021020220 has 24 divisors (see below), whose sum is σ = 310800058856784. Its totient is φ = 29600005605376.

The previous prime is 111000021020183. The next prime is 111000021020221. The reversal of 111000021020220 is 22020120000111.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 111000021020196 and 111000021020205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111000021020221) 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, 925000175109 + ... + 925000175228.

It is an arithmetic number, because the mean of its divisors is an integer number (12950002452366).

Almost surely, 2^{111000021020220} is an apocalyptic number.

111000021020220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111000021020220 is an abundant number, since it is smaller than the sum of its proper divisors (199800037836564).

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

111000021020220 is a wasteful number, since it uses less digits than its factorization.

111000021020220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1850000350349 (or 1850000350347 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 111000021020220 its reverse (22020120000111), we get a palindrome (133020141020331).

The spelling of 111000021020220 in words is "one hundred eleven trillion, twenty-one million, twenty thousand, two hundred twenty".