22121201220332 has 12 divisors (see below), whose sum is σ = 38714340079800. Its totient is φ = 11059961197536.

The previous prime is 22121201220289. The next prime is 22121201220409. The reversal of 22121201220332 is 23302210212122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22121201220298 and 22121201220307.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159775313 + ... + 159913704.

It is an arithmetic number, because the mean of its divisors is an integer number (3226195006650).

Almost surely, 2^{22121201220332} is an apocalyptic number.

It is an amenable number.

22121201220332 is a deficient number, since it is larger than the sum of its proper divisors (16593138859468).

22121201220332 is a wasteful number, since it uses less digits than its factorization.

22121201220332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319706320 (or 319706318 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 22121201220332 its reverse (23302210212122), we get a palindrome (45423411432454).

The spelling of 22121201220332 in words is "twenty-two trillion, one hundred twenty-one billion, two hundred one million, two hundred twenty thousand, three hundred thirty-two".