2201000011121 has 2 divisors, whose sum is σ = 2201000011122. Its totient is φ = 2201000011120.

The previous prime is 2201000011117. The next prime is 2201000011151. The reversal of 2201000011121 is 1211100001022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1259108410000 + 941891601121 = 1122100^2 + 970511^2 .

It is a cyclic number.

It is not a de Polignac number, because 2201000011121 - 2² = 2201000011117 is a prime.

It is not a weakly prime, because it can be changed into another prime (2201000011151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100500005560 + 1100500005561.

It is an arithmetic number, because the mean of its divisors is an integer number (1100500005561).

Almost surely, 2^{2201000011121} is an apocalyptic number.

It is an amenable number.

2201000011121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2201000011121 is an equidigital number, since it uses as much as digits as its factorization.

2201000011121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 2201000011121 its reverse (1211100001022), we get a palindrome (3412100012143).

The spelling of 2201000011121 in words is "two trillion, two hundred one billion, eleven thousand, one hundred twenty-one".