2221120231121 has 8 divisors (see below), whose sum is σ = 2424178389600. Its totient is φ = 2018251762240.

The previous prime is 2221120231091. The next prime is 2221120231133. The reversal of 2221120231121 is 1211320211222.

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

It is a cyclic number.

It is not a de Polignac number, because 2221120231121 - 2²⁶ = 2221053122257 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2221120231093 and 2221120231102.

It is not an unprimeable number, because it can be changed into a prime (2221120231621) 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, 47397911 + ... + 47444748.

It is an arithmetic number, because the mean of its divisors is an integer number (303022298700).

Almost surely, 2^{2221120231121} is an apocalyptic number.

It is an amenable number.

2221120231121 is a deficient number, since it is larger than the sum of its proper divisors (203058158479).

2221120231121 is a wasteful number, since it uses less digits than its factorization.

2221120231121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94844799.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 2221120231121 its reverse (1211320211222), we get a palindrome (3432440442343).

The spelling of 2221120231121 in words is "two trillion, two hundred twenty-one billion, one hundred twenty million, two hundred thirty-one thousand, one hundred twenty-one".