221112220127 has 2 divisors, whose sum is σ = 221112220128. Its totient is φ = 221112220126.

The previous prime is 221112220099. The next prime is 221112220151. The reversal of 221112220127 is 721022211122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221112220127 - 2¹⁰ = 221112219103 is a prime.

It is a super-2 number, since 2×221112220127² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221112220027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110556110063 + 110556110064.

It is an arithmetic number, because the mean of its divisors is an integer number (110556110064).

Almost surely, 2^221112220127 is an apocalyptic number.

221112220127 is a deficient number, since it is larger than the sum of its proper divisors (1).

221112220127 is an equidigital number, since it uses as much as digits as its factorization.

221112220127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 23.

Adding to 221112220127 its reverse (721022211122), we get a palindrome (942134431249).

The spelling of 221112220127 in words is "two hundred twenty-one billion, one hundred twelve million, two hundred twenty thousand, one hundred twenty-seven".