11121021151 has 2 divisors, whose sum is σ = 11121021152. Its totient is φ = 11121021150.

The previous prime is 11121021089. The next prime is 11121021193. The reversal of 11121021151 is 15112012111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11121021151 - 2¹¹ = 11121019103 is a prime.

It is a super-2 number, since 2×11121021151² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11121061151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5560510575 + 5560510576.

It is an arithmetic number, because the mean of its divisors is an integer number (5560510576).

Almost surely, 2^11121021151 is an apocalyptic number.

11121021151 is a deficient number, since it is larger than the sum of its proper divisors (1).

11121021151 is an equidigital number, since it uses as much as digits as its factorization.

11121021151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20, while the sum is 16.

Adding to 11121021151 its reverse (15112012111), we get a palindrome (26233033262).

The spelling of 11121021151 in words is "eleven billion, one hundred twenty-one million, twenty-one thousand, one hundred fifty-one".