1200022120127 has 2 divisors, whose sum is σ = 1200022120128. Its totient is φ = 1200022120126.

The previous prime is 1200022120061. The next prime is 1200022120169. The reversal of 1200022120127 is 7210212200021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1200022120127 - 2¹⁰ = 1200022119103 is a prime.

It is a super-2 number, since 2×1200022120127² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1200022120099 and 1200022120108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1200022120727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600011060063 + 600011060064.

It is an arithmetic number, because the mean of its divisors is an integer number (600011060064).

Almost surely, 2^{1200022120127} is an apocalyptic number.

1200022120127 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200022120127 is an equidigital number, since it uses as much as digits as its factorization.

1200022120127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 20.

Adding to 1200022120127 its reverse (7210212200021), we get a palindrome (8410234320148).

The spelling of 1200022120127 in words is "one trillion, two hundred billion, twenty-two million, one hundred twenty thousand, one hundred twenty-seven".