111400226221 has 2 divisors, whose sum is σ = 111400226222. Its totient is φ = 111400226220.

The previous prime is 111400226209. The next prime is 111400226243. The reversal of 111400226221 is 122622004111.

It is an a-pointer prime, because the next prime (111400226243) can be obtained adding 111400226221 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99231930121 + 12168296100 = 315011^2 + 110310^2 .

It is a cyclic number.

It is not a de Polignac number, because 111400226221 - 2¹⁵ = 111400193453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111400226192 and 111400226201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111400226621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55700113110 + 55700113111.

It is an arithmetic number, because the mean of its divisors is an integer number (55700113111).

Almost surely, 2^111400226221 is an apocalyptic number.

It is an amenable number.

111400226221 is a deficient number, since it is larger than the sum of its proper divisors (1).

111400226221 is an equidigital number, since it uses as much as digits as its factorization.

111400226221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 22.

The spelling of 111400226221 in words is "one hundred eleven billion, four hundred million, two hundred twenty-six thousand, two hundred twenty-one".