201111011002220 has 24 divisors (see below), whose sum is σ = 460727043387408. Its totient is φ = 73131276728000.

The previous prime is 201111011002219. The next prime is 201111011002243. The reversal of 201111011002220 is 22200110111102.

It is a junction number, because it is equal to n+sod(n) for n = 201111011002195 and 201111011002204.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 457070479331 + ... + 457070479770.

It is an arithmetic number, because the mean of its divisors is an integer number (19196960141142).

Almost surely, 2^{201111011002220} is an apocalyptic number.

201111011002220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201111011002220 is an abundant number, since it is smaller than the sum of its proper divisors (259616032385188).

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

201111011002220 is a wasteful number, since it uses less digits than its factorization.

201111011002220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914140959121 (or 914140959119 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 201111011002220 its reverse (22200110111102), we get a palindrome (223311121113322).

The spelling of 201111011002220 in words is "two hundred one trillion, one hundred eleven billion, eleven million, two thousand, two hundred twenty".