11121201102020 has 12 divisors (see below), whose sum is σ = 23354522314284. Its totient is φ = 4448480440800.

The previous prime is 11121201102019. The next prime is 11121201102043. The reversal of 11121201102020 is 2020110212111.

It can be written as a sum of positive squares in 2 ways, for example, as 1206662704324 + 9914538397696 = 1098482^2 + 3148736^2 .

It is a super-2 number, since 2×11121201102020² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11121201101986 and 11121201102004.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278030027531 + ... + 278030027570.

It is an arithmetic number, because the mean of its divisors is an integer number (1946210192857).

Almost surely, 2^{11121201102020} is an apocalyptic number.

11121201102020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11121201102020 is an abundant number, since it is smaller than the sum of its proper divisors (12233321212264).

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

11121201102020 is a wasteful number, since it uses less digits than its factorization.

11121201102020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556060055110 (or 556060055108 counting only the distinct ones).

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

Adding to 11121201102020 its reverse (2020110212111), we get a palindrome (13141311314131).

The spelling of 11121201102020 in words is "eleven trillion, one hundred twenty-one billion, two hundred one million, one hundred two thousand, twenty".