2172221617110 has 32 divisors (see below), whose sum is σ = 5213402853120. Its totient is φ = 579251212128.

The previous prime is 2172221617109. The next prime is 2172221617123. The reversal of 2172221617110 is 117161222712.

It is a Curzon number.

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, 1945279 + ... + 2851061.

It is an arithmetic number, because the mean of its divisors is an integer number (162918839160).

Almost surely, 2^{2172221617110} is an apocalyptic number.

2172221617110 is an abundant number, since it is smaller than the sum of its proper divisors (3041181236010).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2172221617110 is a wasteful number, since it uses less digits than its factorization.

2172221617110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985732.

The product of its (nonzero) digits is 4704, while the sum is 33.

Adding to 2172221617110 its reverse (117161222712), we get a palindrome (2289382839822).

The spelling of 2172221617110 in words is "two trillion, one hundred seventy-two billion, two hundred twenty-one million, six hundred seventeen thousand, one hundred ten".