2201011111121 has 4 divisors (see below), whose sum is σ = 2316853801200. Its totient is φ = 2085168421044.

The previous prime is 2201011111111. The next prime is 2201011111133. The reversal of 2201011111121 is 1211111101022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2201011111121 is a prime.

It is a super-2 number, since 2×2201011111121² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2201011111096 and 2201011111105.

It is not an unprimeable number, because it can be changed into a prime (2201011111111) 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 3 ways as a sum of consecutive naturals, for example, 57921345011 + ... + 57921345048.

It is an arithmetic number, because the mean of its divisors is an integer number (579213450300).

Almost surely, 2^{2201011111121} is an apocalyptic number.

It is an amenable number.

2201011111121 is a deficient number, since it is larger than the sum of its proper divisors (115842690079).

2201011111121 is a wasteful number, since it uses less digits than its factorization.

2201011111121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115842690078.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 2201011111121 its reverse (1211111101022), we get a palindrome (3412122212143).

It can be divided in two parts, 2201011 and 111121, that added together give a palindrome (2312132).

The spelling of 2201011111121 in words is "two trillion, two hundred one billion, eleven million, one hundred eleven thousand, one hundred twenty-one".