1100120200221 has 16 divisors (see below), whose sum is σ = 1676391295104. Its totient is φ = 628633493184.

The previous prime is 1100120200213. The next prime is 1100120200253. The reversal of 1100120200221 is 1220020210011.

It is not a de Polignac number, because 1100120200221 - 2³ = 1100120200213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1100120200197 and 1100120200206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100120200271) 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, 2343955 + ... + 2773871.

It is an arithmetic number, because the mean of its divisors is an integer number (104774455944).

Almost surely, 2^{1100120200221} is an apocalyptic number.

It is an amenable number.

1100120200221 is a deficient number, since it is larger than the sum of its proper divisors (576271094883).

1100120200221 is a wasteful number, since it uses less digits than its factorization.

1100120200221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551780.

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

Adding to 1100120200221 its reverse (1220020210011), we get a palindrome (2320140410232).

The spelling of 1100120200221 in words is "one trillion, one hundred billion, one hundred twenty million, two hundred thousand, two hundred twenty-one".