11121001122020 has 48 divisors (see below), whose sum is σ = 23683655318400. Its totient is φ = 4385631747840.

The previous prime is 11121001121981. The next prime is 11121001122071. The reversal of 11121001122020 is 2022110012111.

It is a junction number, because it is equal to n+sod(n) for n = 11121001121986 and 11121001122004.

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, 71574176 + ... + 71729384.

It is an arithmetic number, because the mean of its divisors is an integer number (493409485800).

Almost surely, 2^{11121001122020} is an apocalyptic number.

11121001122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11121001122020 is an abundant number, since it is smaller than the sum of its proper divisors (12562654196380).

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

11121001122020 is a wasteful number, since it uses less digits than its factorization.

11121001122020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205748 (or 205746 counting only the distinct ones).

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

Adding to 11121001122020 its reverse (2022110012111), we get a palindrome (13143111134131).

The spelling of 11121001122020 in words is "eleven trillion, one hundred twenty-one billion, one million, one hundred twenty-two thousand, twenty".