111022221061 has 2 divisors, whose sum is σ = 111022221062. Its totient is φ = 111022221060.

The previous prime is 111022221049. The next prime is 111022221151. The reversal of 111022221061 is 160122220111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79349256100 + 31672964961 = 281690^2 + 177969^2 .

It is a cyclic number.

It is not a de Polignac number, because 111022221061 - 2¹¹ = 111022219013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111022221161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55511110530 + 55511110531.

It is an arithmetic number, because the mean of its divisors is an integer number (55511110531).

Almost surely, 2^111022221061 is an apocalyptic number.

It is an amenable number.

111022221061 is a deficient number, since it is larger than the sum of its proper divisors (1).

111022221061 is an equidigital number, since it uses as much as digits as its factorization.

111022221061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 111022221061 its reverse (160122220111), we get a palindrome (271144441172).

The spelling of 111022221061 in words is "one hundred eleven billion, twenty-two million, two hundred twenty-one thousand, sixty-one".