1101121332020 has 48 divisors (see below), whose sum is σ = 2449205897040. Its totient is φ = 414399227904.

The previous prime is 1101121331953. The next prime is 1101121332079. The reversal of 1101121332020 is 202331211011.

It can be written as a sum of positive squares in 8 ways, for example, as 40475044 + 1101080856976 = 6362^2 + 1049324^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 1101121332020.

It is a congruent number.

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, 457766 + ... + 1552994.

It is an arithmetic number, because the mean of its divisors is an integer number (51025122855).

Almost surely, 2^{1101121332020} is an apocalyptic number.

1101121332020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1101121332020 is an abundant number, since it is smaller than the sum of its proper divisors (1348084565020).

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

1101121332020 is a wasteful number, since it uses less digits than its factorization.

1101121332020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1098212 (or 1098210 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1101121332020 its reverse (202331211011), we get a palindrome (1303452543031).

It can be divided in two parts, 1101 and 121332020, that added together give a palindrome (121333121).

The spelling of 1101121332020 in words is "one trillion, one hundred one billion, one hundred twenty-one million, three hundred thirty-two thousand, twenty".