11121021022220 has 96 divisors (see below), whose sum is σ = 25414995787776. Its totient is φ = 4075289856000.

The previous prime is 11121021022187. The next prime is 11121021022229. The reversal of 11121021022220 is 2222012012111.

It is not an unprimeable number, because it can be changed into a prime (11121021022229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2636756 + ... + 5403195.

It is an arithmetic number, because the mean of its divisors is an integer number (264739539456).

Almost surely, 2^{11121021022220} is an apocalyptic number.

11121021022220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11121021022220 is an abundant number, since it is smaller than the sum of its proper divisors (14293974765556).

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

11121021022220 is a wasteful number, since it uses less digits than its factorization.

11121021022220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8040111 (or 8040109 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 11121021022220 its reverse (2222012012111), we get a palindrome (13343033034331).

The spelling of 11121021022220 in words is "eleven trillion, one hundred twenty-one billion, twenty-one million, twenty-two thousand, two hundred twenty".