11020120220 has 24 divisors (see below), whose sum is σ = 23706699408. Its totient is φ = 4300534400.

The previous prime is 11020120211. The next prime is 11020120253. The reversal of 11020120220 is 2202102011.

It is a happy number.

It is a congruent number.

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, 6718766 + ... + 6720405.

It is an arithmetic number, because the mean of its divisors is an integer number (987779142).

Almost surely, 2^11020120220 is an apocalyptic number.

11020120220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11020120220 is an abundant number, since it is smaller than the sum of its proper divisors (12686579188).

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

11020120220 is a wasteful number, since it uses less digits than its factorization.

11020120220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13439221 (or 13439219 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 11020120220 its reverse (2202102011), we get a palindrome (13222222231).

The spelling of 11020120220 in words is "eleven billion, twenty million, one hundred twenty thousand, two hundred twenty".