1100100202020 has 36 divisors (see below), whose sum is σ = 3336970613340. Its totient is φ = 293360053824.

The previous prime is 1100100202007. The next prime is 1100100202049. The reversal of 1100100202020 is 202020010011.

It can be written as a sum of positive squares in 2 ways, for example, as 826161016356 + 273939185664 = 908934^2 + 523392^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1100100201993 and 1100100202011.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3055833715 + ... + 3055834074.

Almost surely, 2^{1100100202020} is an apocalyptic number.

1100100202020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100100202020 is an abundant number, since it is smaller than the sum of its proper divisors (2236870411320).

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

1100100202020 is a wasteful number, since it uses less digits than its factorization.

1100100202020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6111667804 (or 6111667799 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 1100100202020 its reverse (202020010011), we get a palindrome (1302120212031).

The spelling of 1100100202020 in words is "one trillion, one hundred billion, one hundred million, two hundred two thousand, twenty".