1121144202020 has 48 divisors (see below), whose sum is σ = 2478419475840. Its totient is φ = 424837380096.

The previous prime is 1121144202019. The next prime is 1121144202043. The reversal of 1121144202020 is 202024411211.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1121144201983 and 1121144202001.

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, 13098884 + ... + 13184196.

It is an arithmetic number, because the mean of its divisors is an integer number (51633739080).

Almost surely, 2^{1121144202020} is an apocalyptic number.

1121144202020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121144202020 is an abundant number, since it is smaller than the sum of its proper divisors (1357275273820).

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

1121144202020 is a wasteful number, since it uses less digits than its factorization.

1121144202020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119924 (or 119922 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 1121144202020 its reverse (202024411211), we get a palindrome (1323168613231).

It can be divided in two parts, 112114 and 4202020, that added together give a palindrome (4314134).

The spelling of 1121144202020 in words is "one trillion, one hundred twenty-one billion, one hundred forty-four million, two hundred two thousand, twenty".