2211112001121 has 16 divisors (see below), whose sum is σ = 3018698542080. Its totient is φ = 1439203202640.

The previous prime is 2211112001113. The next prime is 2211112001129. The reversal of 2211112001121 is 1211002111122.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2211112001113) and next prime (2211112001129).

It is not a de Polignac number, because 2211112001121 - 2³ = 2211112001113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2211112001121.

It is not an unprimeable number, because it can be changed into a prime (2211112001129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50370331 + ... + 50414208.

It is an arithmetic number, because the mean of its divisors is an integer number (188668658880).

Almost surely, 2^{2211112001121} is an apocalyptic number.

It is an amenable number.

2211112001121 is a deficient number, since it is larger than the sum of its proper divisors (807586540959).

2211112001121 is a wasteful number, since it uses less digits than its factorization.

2211112001121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100784716.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 2211112001121 its reverse (1211002111122), we get a palindrome (3422114112243).

The spelling of 2211112001121 in words is "two trillion, two hundred eleven billion, one hundred twelve million, one thousand, one hundred twenty-one".