220111101020 has 48 divisors (see below), whose sum is σ = 463270485888. Its totient is φ = 87847119360.

The previous prime is 220111100983. The next prime is 220111101031. The reversal of 220111101020 is 20101111022.

It is a junction number, because it is equal to n+sod(n) for n = 220111100992 and 220111101010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17065694 + ... + 17078586.

It is an arithmetic number, because the mean of its divisors is an integer number (9651468456).

Almost surely, 2^220111101020 is an apocalyptic number.

220111101020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220111101020 is an abundant number, since it is smaller than the sum of its proper divisors (243159384868).

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

220111101020 is a wasteful number, since it uses less digits than its factorization.

220111101020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14750 (or 14748 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 220111101020 its reverse (20101111022), we get a palindrome (240212212042).

The spelling of 220111101020 in words is "two hundred twenty billion, one hundred eleven million, one hundred one thousand, twenty".