22002312121222 has 4 divisors (see below), whose sum is σ = 33003468181836. Its totient is φ = 11001156060610.

The previous prime is 22002312121201. The next prime is 22002312121249. The reversal of 22002312121222 is 22212121320022.

It is a happy number.

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 = 22002312121193 and 22002312121202.

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, 5500578030304 + ... + 5500578030307.

It is an arithmetic number, because the mean of its divisors is an integer number (8250867045459).

Almost surely, 2^{22002312121222} is an apocalyptic number.

22002312121222 is a deficient number, since it is larger than the sum of its proper divisors (11001156060614).

22002312121222 is a wasteful number, since it uses less digits than its factorization.

22002312121222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11001156060613.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 22002312121222 its reverse (22212121320022), we get a palindrome (44214433441244).

The spelling of 22002312121222 in words is "twenty-two trillion, two billion, three hundred twelve million, one hundred twenty-one thousand, two hundred twenty-two".