2201122111121 has 16 divisors (see below), whose sum is σ = 2250336168960. Its totient is φ = 2152008630720.

The previous prime is 2201122111103. The next prime is 2201122111127. The reversal of 2201122111121 is 1211112211022.

It is a cyclic number.

It is not a de Polignac number, because 2201122111121 - 2¹⁴ = 2201122094737 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2201122111121.

It is not an unprimeable number, because it can be changed into a prime (2201122111127) 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, 217046711 + ... + 217056851.

It is an arithmetic number, because the mean of its divisors is an integer number (140646010560).

Almost surely, 2^{2201122111121} is an apocalyptic number.

It is an amenable number.

2201122111121 is a deficient number, since it is larger than the sum of its proper divisors (49214057839).

2201122111121 is a wasteful number, since it uses less digits than its factorization.

2201122111121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14624.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 2201122111121 its reverse (1211112211022), we get a palindrome (3412234322143).

Subtracting from 2201122111121 its reverse (1211112211022), we obtain a palindrome (990009900099).

The spelling of 2201122111121 in words is "two trillion, two hundred one billion, one hundred twenty-two million, one hundred eleven thousand, one hundred twenty-one".