1055661017222 has 16 divisors (see below), whose sum is σ = 1809772673280. Its totient is φ = 452409132168.

The previous prime is 1055661017219. The next prime is 1055661017233. The reversal of 1055661017222 is 2227101665501.

It is a super-2 number, since 2×1055661017222² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1029008 + ... + 1780499.

It is an arithmetic number, because the mean of its divisors is an integer number (113110792080).

Almost surely, 2^{1055661017222} is an apocalyptic number.

1055661017222 is a deficient number, since it is larger than the sum of its proper divisors (754111656058).

1055661017222 is a wasteful number, since it uses less digits than its factorization.

1055661017222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2836355.

The product of its (nonzero) digits is 50400, while the sum is 38.

The spelling of 1055661017222 in words is "one trillion, fifty-five billion, six hundred sixty-one million, seventeen thousand, two hundred twenty-two".