22121202223311 has 4 divisors (see below), whose sum is σ = 29494936297752. Its totient is φ = 14747468148872.

The previous prime is 22121202223303. The next prime is 22121202223333. The reversal of 22121202223311 is 11332220212122.

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

It is a cyclic number.

It is not a de Polignac number, because 22121202223311 - 2³ = 22121202223303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22121202223361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3686867037216 + ... + 3686867037221.

It is an arithmetic number, because the mean of its divisors is an integer number (7373734074438).

Almost surely, 2^{22121202223311} is an apocalyptic number.

22121202223311 is a deficient number, since it is larger than the sum of its proper divisors (7373734074441).

22121202223311 is an equidigital number, since it uses as much as digits as its factorization.

22121202223311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7373734074440.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 22121202223311 its reverse (11332220212122), we get a palindrome (33453422435433).

The spelling of 22121202223311 in words is "twenty-two trillion, one hundred twenty-one billion, two hundred two million, two hundred twenty-three thousand, three hundred eleven".