1055205321211 has 8 divisors (see below), whose sum is σ = 1111186257920. Its totient is φ = 999268765992.

The previous prime is 1055205321119. The next prime is 1055205321241. The reversal of 1055205321211 is 1121235025501.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1055205321211 - 2¹¹ = 1055205319163 is a prime.

It is a super-2 number, since 2×1055205321211² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1055205321211.

It is not an unprimeable number, because it can be changed into a prime (1055205321241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11046555 + ... + 11141668.

It is an arithmetic number, because the mean of its divisors is an integer number (138898282240).

Almost surely, 2^{1055205321211} is an apocalyptic number.

1055205321211 is a deficient number, since it is larger than the sum of its proper divisors (55980936709).

1055205321211 is a wasteful number, since it uses less digits than its factorization.

1055205321211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22190745.

The product of its (nonzero) digits is 3000, while the sum is 28.

The spelling of 1055205321211 in words is "one trillion, fifty-five billion, two hundred five million, three hundred twenty-one thousand, two hundred eleven".