1121013320221 has 16 divisors (see below), whose sum is σ = 1190908562688. Its totient is φ = 1051559308800.

The previous prime is 1121013320209. The next prime is 1121013320239. The reversal of 1121013320221 is 1220233101211.

It is a cyclic number.

It is not a de Polignac number, because 1121013320221 - 2¹⁵ = 1121013287453 is a prime.

It is a super-3 number, since 3×1121013320221³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121013320201) 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, 19288476 + ... + 19346506.

It is an arithmetic number, because the mean of its divisors is an integer number (74431785168).

Almost surely, 2^{1121013320221} is an apocalyptic number.

It is an amenable number.

1121013320221 is a deficient number, since it is larger than the sum of its proper divisors (69895242467).

1121013320221 is a wasteful number, since it uses less digits than its factorization.

1121013320221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61812.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1121013320221 its reverse (1220233101211), we get a palindrome (2341246421432).

The spelling of 1121013320221 in words is "one trillion, one hundred twenty-one billion, thirteen million, three hundred twenty thousand, two hundred twenty-one".