2133111110220 has 72 divisors (see below), whose sum is σ = 6559073198496. Its totient is φ = 561037439232.

The previous prime is 2133111110189. The next prime is 2133111110233. The reversal of 2133111110220 is 220111113312.

2133111110220 is a `hidden beast` number, since 2 + 1 + 331 + 1 + 1 + 110 + 220 = 666.

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 = 2133111110193 and 2133111110202.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81155472 + ... + 81181751.

It is an arithmetic number, because the mean of its divisors is an integer number (91098238868).

Almost surely, 2^{2133111110220} is an apocalyptic number.

2133111110220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2133111110220 is an abundant number, since it is smaller than the sum of its proper divisors (4425962088276).

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

2133111110220 is a wasteful number, since it uses less digits than its factorization.

2133111110220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162337311 (or 162337306 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 2133111110220 its reverse (220111113312), we get a palindrome (2353222223532).

The spelling of 2133111110220 in words is "two trillion, one hundred thirty-three billion, one hundred eleven million, one hundred ten thousand, two hundred twenty".