22112212021022 has 4 divisors (see below), whose sum is σ = 33168318031536. Its totient is φ = 11056106010510.

The previous prime is 22112212021007. The next prime is 22112212021027. The reversal of 22112212021022 is 22012021221122.

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

It is a junction number, because it is equal to n+sod(n) for n = 22112212020985 and 22112212021003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22112212021027) by changing a digit.

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, 5528053005254 + ... + 5528053005257.

It is an arithmetic number, because the mean of its divisors is an integer number (8292079507884).

Almost surely, 2^{22112212021022} is an apocalyptic number.

22112212021022 is a deficient number, since it is larger than the sum of its proper divisors (11056106010514).

22112212021022 is a wasteful number, since it uses less digits than its factorization.

22112212021022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11056106010513.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 22112212021022 its reverse (22012021221122), we get a palindrome (44124233242144).

The spelling of 22112212021022 in words is "twenty-two trillion, one hundred twelve billion, two hundred twelve million, twenty-one thousand, twenty-two".