1101122011220 has 144 divisors (see below), whose sum is σ = 3005991051840. Its totient is φ = 334835827200.

The previous prime is 1101122011207. The next prime is 1101122011271. The reversal of 1101122011220 is 221102211011.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 1101122011195 and 1101122011204.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 803690 + ... + 1687649.

It is an arithmetic number, because the mean of its divisors is an integer number (20874937860).

Almost surely, 2^{1101122011220} is an apocalyptic number.

1101122011220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1101122011220 is an abundant number, since it is smaller than the sum of its proper divisors (1904869040620).

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

1101122011220 is a wasteful number, since it uses less digits than its factorization.

1101122011220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2491414 (or 2491405 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1101122011220 its reverse (221102211011), we get a palindrome (1322224222231).

The spelling of 1101122011220 in words is "one trillion, one hundred one billion, one hundred twenty-two million, eleven thousand, two hundred twenty".