11101222122020 has 48 divisors (see below), whose sum is σ = 24065447540736. Its totient is φ = 4297093200000.

The previous prime is 11101222121933. The next prime is 11101222122079. The reversal of 11101222122020 is 2022122210111.

It is a self number, because there is not a number n which added to its sum of digits gives 11101222122020.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17810645 + ... + 18423395.

It is an arithmetic number, because the mean of its divisors is an integer number (501363490432).

Almost surely, 2^{11101222122020} is an apocalyptic number.

11101222122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11101222122020 is an abundant number, since it is smaller than the sum of its proper divisors (12964225418716).

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

11101222122020 is a wasteful number, since it uses less digits than its factorization.

11101222122020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642012 (or 642010 counting only the distinct ones).

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

Adding to 11101222122020 its reverse (2022122210111), we get a palindrome (13123344332131).

The spelling of 11101222122020 in words is "eleven trillion, one hundred one billion, two hundred twenty-two million, one hundred twenty-two thousand, twenty".