2222111101121 has 16 divisors (see below), whose sum is σ = 2398103496000. Its totient is φ = 2051309864448.

The previous prime is 2222111101117. The next prime is 2222111101123. The reversal of 2222111101121 is 1211011112222.

It is not a de Polignac number, because 2222111101121 - 2² = 2222111101117 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

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 2222111101121.

It is not an unprimeable number, because it can be changed into a prime (2222111101123) 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, 2056196 + ... + 2944853.

It is an arithmetic number, because the mean of its divisors is an integer number (149881468500).

Almost surely, 2^{2222111101121} is an apocalyptic number.

It is an amenable number.

2222111101121 is a deficient number, since it is larger than the sum of its proper divisors (175992394879).

2222111101121 is a wasteful number, since it uses less digits than its factorization.

2222111101121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5001568.

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

Adding to 2222111101121 its reverse (1211011112222), we get a palindrome (3433122213343).

It can be divided in two parts, 2222111 and 101121, that added together give a palindrome (2323232).

The spelling of 2222111101121 in words is "two trillion, two hundred twenty-two billion, one hundred eleven million, one hundred one thousand, one hundred twenty-one".