11520202220 has 24 divisors (see below), whose sum is σ = 24288819408. Its totient is φ = 4589720000.

The previous prime is 11520202219. The next prime is 11520202247. The reversal of 11520202220 is 2220202511.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1142411 + ... + 1152450.

It is an arithmetic number, because the mean of its divisors is an integer number (1012034142).

Almost surely, 2^11520202220 is an apocalyptic number.

11520202220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11520202220 is an abundant number, since it is smaller than the sum of its proper divisors (12768617188).

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

11520202220 is a wasteful number, since it uses less digits than its factorization.

11520202220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2295121 (or 2295119 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

Adding to 11520202220 its reverse (2220202511), we get a palindrome (13740404731).

The spelling of 11520202220 in words is "eleven billion, five hundred twenty million, two hundred two thousand, two hundred twenty".