11212110222020 has 12 divisors (see below), whose sum is σ = 23545431466284. Its totient is φ = 4484844088800.

The previous prime is 11212110221959. The next prime is 11212110222067. The reversal of 11212110222020 is 2022201121211.

It can be written as a sum of positive squares in 2 ways, for example, as 1711031428096 + 9501078793924 = 1308064^2 + 3082382^2 .

It is a super-2 number, since 2×11212110222020² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11212110222020.

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 3 ways as a sum of consecutive naturals, for example, 280302755531 + ... + 280302755570.

It is an arithmetic number, because the mean of its divisors is an integer number (1962119288857).

Almost surely, 2^{11212110222020} is an apocalyptic number.

11212110222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11212110222020 is an abundant number, since it is smaller than the sum of its proper divisors (12333321244264).

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

11212110222020 is a wasteful number, since it uses less digits than its factorization.

11212110222020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560605511110 (or 560605511108 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 11212110222020 its reverse (2022201121211), we get a palindrome (13234311343231).

The spelling of 11212110222020 in words is "eleven trillion, two hundred twelve billion, one hundred ten million, two hundred twenty-two thousand, twenty".