1102020202120 has 16 divisors (see below), whose sum is σ = 2479545454860. Its totient is φ = 440808080832.

The previous prime is 1102020202061. The next prime is 1102020202147. The reversal of 1102020202120 is 212020202011.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1048604672196 + 53415529924 = 1024014^2 + 231118^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1102020202120.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13775252487 + ... + 13775252566.

Almost surely, 2^{1102020202120} is an apocalyptic number.

1102020202120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1102020202120 is an abundant number, since it is smaller than the sum of its proper divisors (1377525252740).

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

1102020202120 is a wasteful number, since it uses less digits than its factorization.

1102020202120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27550505064 (or 27550505060 counting only the distinct ones).

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

Adding to 1102020202120 its reverse (212020202011), we get a palindrome (1314040404131).

The spelling of 1102020202120 in words is "one trillion, one hundred two billion, twenty million, two hundred two thousand, one hundred twenty".