22120220201985 has 12 divisors (see below), whose sum is σ = 38341715016852. Its totient is φ = 11797450774368.

The previous prime is 22120220201983. The next prime is 22120220202019. The reversal of 22120220201985 is 58910202202122.

22120220201985 is a `hidden beast` number, since 22 + 120 + 220 + 201 + 98 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 16390765199601 + 5729455002384 = 4048551^2 + 2393628^2 .

It is not a de Polignac number, because 22120220201985 - 2¹ = 22120220201983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22120220201983) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 245780224422 + ... + 245780224511.

It is an arithmetic number, because the mean of its divisors is an integer number (3195142918071).

Almost surely, 2^{22120220201985} is an apocalyptic number.

It is an amenable number.

22120220201985 is a deficient number, since it is larger than the sum of its proper divisors (16221494814867).

22120220201985 is a wasteful number, since it uses less digits than its factorization.

22120220201985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491560448944 (or 491560448941 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The spelling of 22120220201985 in words is "twenty-two trillion, one hundred twenty billion, two hundred twenty million, two hundred one thousand, nine hundred eighty-five".