11001121122210 has 48 divisors (see below), whose sum is σ = 27281864648448. Its totient is φ = 2838998991840.

The previous prime is 11001121122197. The next prime is 11001121122221. The reversal of 11001121122210 is 1222112110011.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 11001121122210.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 190764114 + ... + 190821773.

It is an arithmetic number, because the mean of its divisors is an integer number (568372180176).

Almost surely, 2^{11001121122210} is an apocalyptic number.

11001121122210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11001121122210 is an abundant number, since it is smaller than the sum of its proper divisors (16280743526238).

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

11001121122210 is a wasteful number, since it uses less digits than its factorization.

11001121122210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381585959 (or 381585928 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11001121122210 its reverse (1222112110011), we get a palindrome (12223233232221).

The spelling of 11001121122210 in words is "eleven trillion, one billion, one hundred twenty-one million, one hundred twenty-two thousand, two hundred ten".