1055051221201 has 2 divisors, whose sum is σ = 1055051221202. Its totient is φ = 1055051221200.

The previous prime is 1055051221193. The next prime is 1055051221207. The reversal of 1055051221201 is 1021221505501.

It is a happy number.

1055051221201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 611248766976 + 443802454225 = 781824^2 + 666185^2 .

It is a cyclic number.

It is not a de Polignac number, because 1055051221201 - 2³ = 1055051221193 is a prime.

It is a super-2 number, since 2×1055051221201² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1055051221207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527525610600 + 527525610601.

It is an arithmetic number, because the mean of its divisors is an integer number (527525610601).

Almost surely, 2^{1055051221201} is an apocalyptic number.

It is an amenable number.

1055051221201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1055051221201 is an equidigital number, since it uses as much as digits as its factorization.

1055051221201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1000, while the sum is 25.

Adding to 1055051221201 its reverse (1021221505501), we get a palindrome (2076272726702).

The spelling of 1055051221201 in words is "one trillion, fifty-five billion, fifty-one million, two hundred twenty-one thousand, two hundred one".