1100122100220 has 96 divisors (see below), whose sum is σ = 3618863216640. Its totient is φ = 246181167360.

The previous prime is 1100122100179. The next prime is 1100122100221. The reversal of 1100122100220 is 220012210011.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1100122100196 and 1100122100205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100122100221) 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, 64101100 + ... + 64118259.

It is an arithmetic number, because the mean of its divisors is an integer number (37696491840).

Almost surely, 2^{1100122100220} is an apocalyptic number.

1100122100220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100122100220 is an abundant number, since it is smaller than the sum of its proper divisors (2518741116420).

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

1100122100220 is a wasteful number, since it uses less digits than its factorization.

1100122100220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128219395 (or 128219393 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1100122100220 its reverse (220012210011), we get a palindrome (1320134310231).

The spelling of 1100122100220 in words is "one trillion, one hundred billion, one hundred twenty-two million, one hundred thousand, two hundred twenty".