22012201012222 has 4 divisors (see below), whose sum is σ = 33018301518336. Its totient is φ = 11006100506110.

The previous prime is 22012201012199. The next prime is 22012201012231. The reversal of 22012201012222 is 22221010221022.

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

It is a self number, because there is not a number n which added to its sum of digits gives 22012201012222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5503050253054 + ... + 5503050253057.

It is an arithmetic number, because the mean of its divisors is an integer number (8254575379584).

Almost surely, 2^{22012201012222} is an apocalyptic number.

22012201012222 is a deficient number, since it is larger than the sum of its proper divisors (11006100506114).

22012201012222 is a wasteful number, since it uses less digits than its factorization.

22012201012222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11006100506113.

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

Adding to 22012201012222 its reverse (22221010221022), we get a palindrome (44233211233244).

The spelling of 22012201012222 in words is "twenty-two trillion, twelve billion, two hundred one million, twelve thousand, two hundred twenty-two".