2122261173 has 12 divisors (see below), whose sum is σ = 3136779360. Its totient is φ = 1381937256.

The previous prime is 2122261153. The next prime is 2122261223. The reversal of 2122261173 is 3711622212.

2122261173 is a `hidden beast` number, since 21 + 2 + 22 + 611 + 7 + 3 = 666.

It is not a de Polignac number, because 2122261173 - 2¹⁶ = 2122195637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122261153) 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, 2741553 + ... + 2742326.

It is an arithmetic number, because the mean of its divisors is an integer number (261398280).

Almost surely, 2^2122261173 is an apocalyptic number.

It is an amenable number.

2122261173 is a deficient number, since it is larger than the sum of its proper divisors (1014518187).

2122261173 is a wasteful number, since it uses less digits than its factorization.

2122261173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5483928 (or 5483925 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 2122261173 is about 46068.0059585826. The cubic root of 2122261173 is about 1285.0882209665.

Adding to 2122261173 its reverse (3711622212), we get a palindrome (5833883385).

The spelling of 2122261173 in words is "two billion, one hundred twenty-two million, two hundred sixty-one thousand, one hundred seventy-three".