11022221201985 has 48 divisors (see below), whose sum is σ = 21835853829504. Its totient is φ = 5038416193536.

The previous prime is 11022221201939. The next prime is 11022221202007. The reversal of 11022221201985 is 58910212222011.

It is not a de Polignac number, because 11022221201985 - 2¹⁰ = 11022221200961 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4020354 + ... + 6181236.

It is an arithmetic number, because the mean of its divisors is an integer number (454913621448).

Almost surely, 2^{11022221201985} is an apocalyptic number.

11022221201985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11022221201985 is a deficient number, since it is larger than the sum of its proper divisors (10813632627519).

11022221201985 is a wasteful number, since it uses less digits than its factorization.

11022221201985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2177094 (or 2177091 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

Adding to 11022221201985 its reverse (58910212222011), we get a palindrome (69932433423996).

The spelling of 11022221201985 in words is "eleven trillion, twenty-two billion, two hundred twenty-one million, two hundred one thousand, nine hundred eighty-five".