11111022212020 has 24 divisors (see below), whose sum is σ = 23335037558784. Its totient is φ = 4444048710816.

The previous prime is 11111022211979. The next prime is 11111022212039. The reversal of 11111022212020 is 2021222011111.

It is a junction number, because it is equal to n+sod(n) for n = 11111022211985 and 11111022212003.

It is a congruent number.

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, 22257844 + ... + 22751563.

It is an arithmetic number, because the mean of its divisors is an integer number (972293231616).

Almost surely, 2^{11111022212020} is an apocalyptic number.

11111022212020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11111022212020 is an abundant number, since it is smaller than the sum of its proper divisors (12224015346764).

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

11111022212020 is a wasteful number, since it uses less digits than its factorization.

11111022212020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45021759 (or 45021757 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11111022212020 its reverse (2021222011111), we get a palindrome (13132244223131).

The spelling of 11111022212020 in words is "eleven trillion, one hundred eleven billion, twenty-two million, two hundred twelve thousand, twenty".