1121121200221 has 8 divisors (see below), whose sum is σ = 1287411904800. Its totient is φ = 965558928240.

The previous prime is 1121121200201. The next prime is 1121121200239. The reversal of 1121121200221 is 1220021211211.

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

It is not a de Polignac number, because 1121121200221 - 2⁵ = 1121121200189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1121121200195 and 1121121200204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121121200201) 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, 2682107926 + ... + 2682108343.

It is an arithmetic number, because the mean of its divisors is an integer number (160926488100).

Almost surely, 2^{1121121200221} is an apocalyptic number.

1121121200221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1121121200221 is a deficient number, since it is larger than the sum of its proper divisors (166290704579).

1121121200221 is a wasteful number, since it uses less digits than its factorization.

1121121200221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5364216299.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1121121200221 its reverse (1220021211211), we get a palindrome (2341142411432).

The spelling of 1121121200221 in words is "one trillion, one hundred twenty-one billion, one hundred twenty-one million, two hundred thousand, two hundred twenty-one".