11011202120 has 16 divisors (see below), whose sum is σ = 24775204860. Its totient is φ = 4404480832.

The previous prime is 11011202113. The next prime is 11011202129. The reversal of 11011202120 is 2120211011.

It can be written as a sum of positive squares in 2 ways, for example, as 9845799076 + 1165403044 = 99226^2 + 34138^2 .

It is not an unprimeable number, because it can be changed into a prime (11011202129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137639987 + ... + 137640066.

Almost surely, 2^11011202120 is an apocalyptic number.

11011202120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11011202120 is an abundant number, since it is smaller than the sum of its proper divisors (13764002740).

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

11011202120 is a wasteful number, since it uses less digits than its factorization.

11011202120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275280064 (or 275280060 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11011202120 its reverse (2120211011), we get a palindrome (13131413131).

The spelling of 11011202120 in words is "eleven billion, eleven million, two hundred two thousand, one hundred twenty".