22121202232 has 16 divisors (see below), whose sum is σ = 41482601640. Its totient is φ = 11059175136.

The previous prime is 22121202217. The next prime is 22121202241. The reversal of 22121202232 is 23220212122.

It is a congruent number.

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, 110818 + ... + 237745.

Almost surely, 2^22121202232 is an apocalyptic number.

It is an amenable number.

22121202232 is a deficient number, since it is larger than the sum of its proper divisors (19361399408).

22121202232 is a wasteful number, since it uses less digits than its factorization.

22121202232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356502 (or 356498 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 22121202232 its reverse (23220212122), we get a palindrome (45341414354).

The spelling of 22121202232 in words is "twenty-two billion, one hundred twenty-one million, two hundred two thousand, two hundred thirty-two".