2011122111151 has 2 divisors, whose sum is σ = 2011122111152. Its totient is φ = 2011122111150.

The previous prime is 2011122111133. The next prime is 2011122111197. The reversal of 2011122111151 is 1511112211102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2011122111151 - 2⁷ = 2011122111023 is a prime.

It is a super-2 number, since 2×2011122111151² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2011122112151) 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 as a sum of consecutive naturals, namely, 1005561055575 + 1005561055576.

It is an arithmetic number, because the mean of its divisors is an integer number (1005561055576).

Almost surely, 2^{2011122111151} is an apocalyptic number.

2011122111151 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011122111151 is an equidigital number, since it uses as much as digits as its factorization.

2011122111151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40, while the sum is 19.

Adding to 2011122111151 its reverse (1511112211102), we get a palindrome (3522234322253).

The spelling of 2011122111151 in words is "two trillion, eleven billion, one hundred twenty-two million, one hundred eleven thousand, one hundred fifty-one".