111110020122221 has 12 divisors (see below), whose sum is σ = 115514188456896. Its totient is φ = 106866158130360.

The previous prime is 111110020122131. The next prime is 111110020122223. The reversal of 111110020122221 is 122221020011111.

It is not a de Polignac number, because 111110020122221 - 2¹⁴ = 111110020105837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111110020122221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111110020122223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 354503381 + ... + 354816666.

It is an arithmetic number, because the mean of its divisors is an integer number (9626182371408).

Almost surely, 2^{111110020122221} is an apocalyptic number.

It is an amenable number.

111110020122221 is a deficient number, since it is larger than the sum of its proper divisors (4404168334675).

111110020122221 is an equidigital number, since it uses as much as digits as its factorization.

111110020122221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709320272 (or 709320241 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 111110020122221 its reverse (122221020011111), we get a palindrome (233331040133332).

The spelling of 111110020122221 in words is "one hundred eleven trillion, one hundred ten billion, twenty million, one hundred twenty-two thousand, two hundred twenty-one".