22180557122 has 4 divisors (see below), whose sum is σ = 33270835686. Its totient is φ = 11090278560.

The previous prime is 22180557121. The next prime is 22180557233. The reversal of 22180557122 is 22175508122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 16401668761 + 5778888361 = 128069^2 + 76019^2 .

It is a super-2 number, since 2×22180557122² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22180557121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5545139279 + ... + 5545139282.

Almost surely, 2^22180557122 is an apocalyptic number.

22180557122 is a deficient number, since it is larger than the sum of its proper divisors (11090278564).

22180557122 is a wasteful number, since it uses less digits than its factorization.

22180557122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11090278563.

The product of its (nonzero) digits is 22400, while the sum is 35.

The spelling of 22180557122 in words is "twenty-two billion, one hundred eighty million, five hundred fifty-seven thousand, one hundred twenty-two".