1055165221201 has 16 divisors (see below), whose sum is σ = 1299178274688. Its totient is φ = 834525964800.

The previous prime is 1055165221199. The next prime is 1055165221213. The reversal of 1055165221201 is 1021225615501.

It is a cyclic number.

It is not a de Polignac number, because 1055165221201 - 2¹ = 1055165221199 is a prime.

It is a super-2 number, since 2×1055165221201² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1055165221001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2060320 + ... + 2520961.

It is an arithmetic number, because the mean of its divisors is an integer number (81198642168).

Almost surely, 2^{1055165221201} is an apocalyptic number.

It is an amenable number.

1055165221201 is a deficient number, since it is larger than the sum of its proper divisors (244013053487).

1055165221201 is a wasteful number, since it uses less digits than its factorization.

1055165221201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4583832.

The product of its (nonzero) digits is 6000, while the sum is 31.

The spelling of 1055165221201 in words is "one trillion, fifty-five billion, one hundred sixty-five million, two hundred twenty-one thousand, two hundred one".