1100001200221 has 32 divisors (see below), whose sum is σ = 1413545527296. Its totient is φ = 831217464000.

The previous prime is 1100001200213. The next prime is 1100001200257. The reversal of 1100001200221 is 1220021000011.

It is not a de Polignac number, because 1100001200221 - 2³ = 1100001200213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1100001200198 and 1100001200207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100001200281) 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, 1315755 + ... + 1982728.

It is an arithmetic number, because the mean of its divisors is an integer number (44173297728).

Almost surely, 2^{1100001200221} is an apocalyptic number.

1100001200221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1100001200221 is a deficient number, since it is larger than the sum of its proper divisors (313544327075).

1100001200221 is a wasteful number, since it uses less digits than its factorization.

1100001200221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3298633.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1100001200221 its reverse (1220021000011), we get a palindrome (2320022200232).

The spelling of 1100001200221 in words is "one trillion, one hundred billion, one million, two hundred thousand, two hundred twenty-one".