111020122011061 has 2 divisors, whose sum is σ = 111020122011062. Its totient is φ = 111020122011060.

The previous prime is 111020122011059. The next prime is 111020122011067. The reversal of 111020122011061 is 160110221020111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71064057002500 + 39956065008561 = 8429950^2 + 6321081^2 .

It is a cyclic number.

It is not a de Polignac number, because 111020122011061 - 2¹ = 111020122011059 is a prime.

It is a super-2 number, since 2×111020122011061² (a number of 29 digits) contains 22 as substring.

Together with 111020122011059, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111020122011067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55510061005530 + 55510061005531.

It is an arithmetic number, because the mean of its divisors is an integer number (55510061005531).

Almost surely, 2^{111020122011061} is an apocalyptic number.

It is an amenable number.

111020122011061 is a deficient number, since it is larger than the sum of its proper divisors (1).

111020122011061 is an equidigital number, since it uses as much as digits as its factorization.

111020122011061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 19.

Adding to 111020122011061 its reverse (160110221020111), we get a palindrome (271130343031172).

The spelling of 111020122011061 in words is "one hundred eleven trillion, twenty billion, one hundred twenty-two million, eleven thousand, sixty-one".