220111211000020 has 48 divisors (see below), whose sum is σ = 462308486547600. Its totient is φ = 88030210821120.

The previous prime is 220111210999997. The next prime is 220111211000027. The reversal of 220111211000020 is 20000112111022.

It can be written as a sum of positive squares in 8 ways, for example, as 10003518911556 + 210107692088464 = 3162834^2 + 14495092^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220111211000027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3826062616 + ... + 3826120144.

It is an arithmetic number, because the mean of its divisors is an integer number (9631426803075).

Almost surely, 2^{220111211000020} is an apocalyptic number.

220111211000020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220111211000020 is an abundant number, since it is smaller than the sum of its proper divisors (242197275547580).

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

220111211000020 is a wasteful number, since it uses less digits than its factorization.

220111211000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85228 (or 85226 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 220111211000020 its reverse (20000112111022), we get a palindrome (240111323111042).

The spelling of 220111211000020 in words is "two hundred twenty trillion, one hundred eleven billion, two hundred eleven million, twenty", and thus it is an aban number.