11121202202020 has 24 divisors (see below), whose sum is σ = 23356984170744. Its totient is φ = 4448012395776.

The previous prime is 11121202201981. The next prime is 11121202202023. The reversal of 11121202202020 is 2020220212111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 417875364 + 11120784326656 = 20442^2 + 3334784^2 .

It is a super-2 number, since 2×11121202202020² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11121202201985 and 11121202202003.

It is not an unprimeable number, because it can be changed into a prime (11121202202023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29085627 + ... + 29465506.

It is an arithmetic number, because the mean of its divisors is an integer number (973207673781).

Almost surely, 2^{11121202202020} is an apocalyptic number.

11121202202020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11121202202020 is an abundant number, since it is smaller than the sum of its proper divisors (12235781968724).

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

11121202202020 is a wasteful number, since it uses less digits than its factorization.

11121202202020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58560639 (or 58560637 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 11121202202020 its reverse (2020220212111), we get a palindrome (13141422414131).

The spelling of 11121202202020 in words is "eleven trillion, one hundred twenty-one billion, two hundred two million, two hundred two thousand, twenty".