22102021220122 has 4 divisors (see below), whose sum is σ = 33153031830186. Its totient is φ = 11051010610060.

The previous prime is 22102021220093. The next prime is 22102021220129. The reversal of 22102021220122 is 22102212020122.

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., 16564663940841 + 5537357279281 = 4069971^2 + 2353159^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22102021220122.

It is not an unprimeable number, because it can be changed into a prime (22102021220129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5525505305029 + ... + 5525505305032.

Almost surely, 2^{22102021220122} is an apocalyptic number.

22102021220122 is a deficient number, since it is larger than the sum of its proper divisors (11051010610064).

22102021220122 is a wasteful number, since it uses less digits than its factorization.

22102021220122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11051010610063.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 22102021220122 its reverse (22102212020122), we get a palindrome (44204233240244).

The spelling of 22102021220122 in words is "twenty-two trillion, one hundred two billion, twenty-one million, two hundred twenty thousand, one hundred twenty-two".