22100122121122 has 4 divisors (see below), whose sum is σ = 33150183181686. Its totient is φ = 11050061060560.

The previous prime is 22100122121083. The next prime is 22100122121131. The reversal of 22100122121122 is 22112122100122.

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., 21615999788601 + 484122332521 = 4649301^2 + 695789^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22100122121122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5525030530279 + ... + 5525030530282.

Almost surely, 2^{22100122121122} is an apocalyptic number.

22100122121122 is a deficient number, since it is larger than the sum of its proper divisors (11050061060564).

22100122121122 is a wasteful number, since it uses less digits than its factorization.

22100122121122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11050061060563.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 22100122121122 its reverse (22112122100122), we get a palindrome (44212244221244).

The spelling of 22100122121122 in words is "twenty-two trillion, one hundred billion, one hundred twenty-two million, one hundred twenty-one thousand, one hundred twenty-two".