1100022221121 has 8 divisors (see below), whose sum is σ = 1466783144064. Its totient is φ = 733304722800.

The previous prime is 1100022221033. The next prime is 1100022221189. The reversal of 1100022221121 is 1211222200011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1100022221121 - 2¹⁷ = 1100022090049 is a prime.

It is a super-3 number, since 3×1100022221121³ (a number of 37 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1100022221121.

It is not an unprimeable number, because it can be changed into a prime (1100022221321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10797001 + ... + 10898406.

It is an arithmetic number, because the mean of its divisors is an integer number (183347893008).

Almost surely, 2^{1100022221121} is an apocalyptic number.

It is an amenable number.

1100022221121 is a deficient number, since it is larger than the sum of its proper divisors (366760922943).

1100022221121 is a wasteful number, since it uses less digits than its factorization.

1100022221121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21712311.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1100022221121 its reverse (1211222200011), we get a palindrome (2311244421132).

The spelling of 1100022221121 in words is "one trillion, one hundred billion, twenty-two million, two hundred twenty-one thousand, one hundred twenty-one".