22131221405214 has 32 divisors (see below), whose sum is σ = 46969725623040. Its totient is φ = 6936732621632.

The previous prime is 22131221405207. The next prime is 22131221405231. The reversal of 22131221405214 is 41250412213122.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1359069567 + ... + 1359085850.

It is an arithmetic number, because the mean of its divisors is an integer number (1467803925720).

Almost surely, 2^{22131221405214} is an apocalyptic number.

22131221405214 is an abundant number, since it is smaller than the sum of its proper divisors (24838504217826).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22131221405214 is a wasteful number, since it uses less digits than its factorization.

22131221405214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2718155504.

The product of its (nonzero) digits is 7680, while the sum is 30.

Adding to 22131221405214 its reverse (41250412213122), we get a palindrome (63381633618336).

The spelling of 22131221405214 in words is "twenty-two trillion, one hundred thirty-one billion, two hundred twenty-one million, four hundred five thousand, two hundred fourteen".