1200001022057 has 2 divisors, whose sum is σ = 1200001022058. Its totient is φ = 1200001022056.

The previous prime is 1200001022047. The next prime is 1200001022113. The reversal of 1200001022057 is 7502201000021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1018234373776 + 181766648281 = 1009076^2 + 426341^2 .

It is a cyclic number.

It is not a de Polignac number, because 1200001022057 - 2¹⁰ = 1200001021033 is a prime.

It is a super-2 number, since 2×1200001022057² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1200001022047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600000511028 + 600000511029.

It is an arithmetic number, because the mean of its divisors is an integer number (600000511029).

Almost surely, 2^{1200001022057} is an apocalyptic number.

It is an amenable number.

1200001022057 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200001022057 is an equidigital number, since it uses as much as digits as its factorization.

1200001022057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 280, while the sum is 20.

Adding to 1200001022057 its reverse (7502201000021), we get a palindrome (8702202022078).

The spelling of 1200001022057 in words is "one trillion, two hundred billion, one million, twenty-two thousand, fifty-seven".