1101001122220 has 24 divisors (see below), whose sum is σ = 2319396068304. Its totient is φ = 439011170496.

The previous prime is 1101001122209. The next prime is 1101001122239. The reversal of 1101001122220 is 222211001011.

It is a super-2 number, since 2×1101001122220² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1101001122220.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86823402 + ... + 86836081.

It is an arithmetic number, because the mean of its divisors is an integer number (96641502846).

Almost surely, 2^{1101001122220} is an apocalyptic number.

1101001122220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1101001122220 is an abundant number, since it is smaller than the sum of its proper divisors (1218394946084).

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

1101001122220 is a wasteful number, since it uses less digits than its factorization.

1101001122220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173659809 (or 173659807 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1101001122220 its reverse (222211001011), we get a palindrome (1323212123231).

It can be divided in two parts, 1101001 and 122220, that added together give a palindrome (1223221).

The spelling of 1101001122220 in words is "one trillion, one hundred one billion, one million, one hundred twenty-two thousand, two hundred twenty".