20221222221232 has 20 divisors (see below), whose sum is σ = 39187540671696. Its totient is φ = 10108308499520.

The previous prime is 20221222221223. The next prime is 20221222221247. The reversal of 20221222221232 is 23212222212202.

It is a junction number, because it is equal to n+sod(n) for n = 20221222221197 and 20221222221206.

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, 143840743 + ... + 143981254.

Almost surely, 2^{20221222221232} is an apocalyptic number.

It is an amenable number.

20221222221232 is a deficient number, since it is larger than the sum of its proper divisors (18966318450464).

20221222221232 is a wasteful number, since it uses less digits than its factorization.

20221222221232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287826396 (or 287826390 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 20221222221232 its reverse (23212222212202), we get a palindrome (43433444433434).

The spelling of 20221222221232 in words is "twenty trillion, two hundred twenty-one billion, two hundred twenty-two million, two hundred twenty-one thousand, two hundred thirty-two".