1100120202220 has 96 divisors (see below), whose sum is σ = 2629000120320. Its totient is φ = 383619075840.

The previous prime is 1100120202067. The next prime is 1100120202287. The reversal of 1100120202220 is 222020210011.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 1100120202220.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 691926 + ... + 1636765.

It is an arithmetic number, because the mean of its divisors is an integer number (27385417920).

Almost surely, 2^{1100120202220} is an apocalyptic number.

1100120202220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100120202220 is an abundant number, since it is smaller than the sum of its proper divisors (1528879918100).

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

1100120202220 is a wasteful number, since it uses less digits than its factorization.

1100120202220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2328815 (or 2328813 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1100120202220 its reverse (222020210011), we get a palindrome (1322140412231).

The spelling of 1100120202220 in words is "one trillion, one hundred billion, one hundred twenty million, two hundred two thousand, two hundred twenty".