2011100222020 has 24 divisors (see below), whose sum is σ = 4471740494424. Its totient is φ = 757120083456.

The previous prime is 2011100222017. The next prime is 2011100222099. The reversal of 2011100222020 is 202220011102.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 242631115776 + 1768469106244 = 492576^2 + 1329838^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2957499987 + ... + 2957500666.

It is an arithmetic number, because the mean of its divisors is an integer number (186322520601).

Almost surely, 2^{2011100222020} is an apocalyptic number.

2011100222020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2011100222020 is an abundant number, since it is smaller than the sum of its proper divisors (2460640272404).

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

2011100222020 is a wasteful number, since it uses less digits than its factorization.

2011100222020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5915000679 (or 5915000677 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2011100222020 its reverse (202220011102), we get a palindrome (2213320233122).

The spelling of 2011100222020 in words is "two trillion, eleven billion, one hundred million, two hundred twenty-two thousand, twenty".