2221112001121 has 16 divisors (see below), whose sum is σ = 2427584793984. Its totient is φ = 2019944795904.

The previous prime is 2221112001077. The next prime is 2221112001131. The reversal of 2221112001121 is 1211002111222.

It is a cyclic number.

It is not a de Polignac number, because 2221112001121 - 2⁷ = 2221112000993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2221112001095 and 2221112001104.

It is not an unprimeable number, because it can be changed into a prime (2221112001131) 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, 4281591 + ... + 4772236.

It is an arithmetic number, because the mean of its divisors is an integer number (151724049624).

Almost surely, 2^{2221112001121} is an apocalyptic number.

It is an amenable number.

2221112001121 is a deficient number, since it is larger than the sum of its proper divisors (206472792863).

2221112001121 is a wasteful number, since it uses less digits than its factorization.

2221112001121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9054120.

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

Adding to 2221112001121 its reverse (1211002111222), we get a palindrome (3432114112343).

The spelling of 2221112001121 in words is "two trillion, two hundred twenty-one billion, one hundred twelve million, one thousand, one hundred twenty-one".