1222085636855 has 16 divisors (see below), whose sum is σ = 1495493665344. Its totient is φ = 958501635840.

The previous prime is 1222085636831. The next prime is 1222085636923. The reversal of 1222085636855 is 5586365802221.

It is not a de Polignac number, because 1222085636855 - 2¹⁶ = 1222085571319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1222085636797 and 1222085636806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9963536 + ... + 10085445.

It is an arithmetic number, because the mean of its divisors is an integer number (93468354084).

Almost surely, 2^{1222085636855} is an apocalyptic number.

1222085636855 is a deficient number, since it is larger than the sum of its proper divisors (273408028489).

1222085636855 is a wasteful number, since it uses less digits than its factorization.

1222085636855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20049226.

The product of its (nonzero) digits is 6912000, while the sum is 53.

The spelling of 1222085636855 in words is "one trillion, two hundred twenty-two billion, eighty-five million, six hundred thirty-six thousand, eight hundred fifty-five".