1100201011220 has 48 divisors (see below), whose sum is σ = 2434189880640. Its totient is φ = 416546862336.

The previous prime is 1100201011199. The next prime is 1100201011229. The reversal of 1100201011220 is 221101020011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100201011229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 862337 + ... + 1715816.

It is an arithmetic number, because the mean of its divisors is an integer number (50712289180).

Almost surely, 2^{1100201011220} is an apocalyptic number.

1100201011220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100201011220 is an abundant number, since it is smaller than the sum of its proper divisors (1333988869420).

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

1100201011220 is a wasteful number, since it uses less digits than its factorization.

1100201011220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2579304 (or 2579302 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1100201011220 its reverse (221101020011), we get a palindrome (1321302031231).

The spelling of 1100201011220 in words is "one trillion, one hundred billion, two hundred one million, eleven thousand, two hundred twenty".