22212220552171 has 8 divisors (see below), whose sum is σ = 23920889536544. Its totient is φ = 20503556801280.

The previous prime is 22212220552139. The next prime is 22212220552177. The reversal of 22212220552171 is 17125502221222.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22212220552171 - 2⁵ = 22212220552139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22212220552177) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15592786 + ... + 16957576.

It is an arithmetic number, because the mean of its divisors is an integer number (2990111192068).

Almost surely, 2^{22212220552171} is an apocalyptic number.

22212220552171 is a deficient number, since it is larger than the sum of its proper divisors (1708668984373).

22212220552171 is a wasteful number, since it uses less digits than its factorization.

22212220552171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2616741.

The product of its (nonzero) digits is 22400, while the sum is 34.

Adding to 22212220552171 its reverse (17125502221222), we get a palindrome (39337722773393).

The spelling of 22212220552171 in words is "twenty-two trillion, two hundred twelve billion, two hundred twenty million, five hundred fifty-two thousand, one hundred seventy-one".