111020022101 has 2 divisors, whose sum is σ = 111020022102. Its totient is φ = 111020022100.

The previous prime is 111020022089. The next prime is 111020022103. The reversal of 111020022101 is 101220020111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65810206225 + 45209815876 = 256535^2 + 212626^2 .

It is a cyclic number.

It is not a de Polignac number, because 111020022101 - 2⁶ = 111020022037 is a prime.

Together with 111020022103, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111020022103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55510011050 + 55510011051.

It is an arithmetic number, because the mean of its divisors is an integer number (55510011051).

Almost surely, 2^111020022101 is an apocalyptic number.

It is an amenable number.

111020022101 is a deficient number, since it is larger than the sum of its proper divisors (1).

111020022101 is an equidigital number, since it uses as much as digits as its factorization.

111020022101 is an evil number, because the sum of its binary digits is even.

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

Adding to 111020022101 its reverse (101220020111), we get a palindrome (212240042212).

The spelling of 111020022101 in words is "one hundred eleven billion, twenty million, twenty-two thousand, one hundred one".