21232233111212 has 12 divisors (see below), whose sum is σ = 37156457960160. Its totient is φ = 10616102265456.

The previous prime is 21232233111211. The next prime is 21232233111239. The reversal of 21232233111212 is 21211133223212.

It is not an unprimeable number, because it can be changed into a prime (21232233111211) 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, 217178 + ... + 6520094.

It is an arithmetic number, because the mean of its divisors is an integer number (3096371496680).

Almost surely, 2^{21232233111212} is an apocalyptic number.

It is an amenable number.

21232233111212 is a deficient number, since it is larger than the sum of its proper divisors (15924224848948).

21232233111212 is a wasteful number, since it uses less digits than its factorization.

21232233111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7145080 (or 7145078 counting only the distinct ones).

The product of its digits is 1728, while the sum is 26.

Adding to 21232233111212 its reverse (21211133223212), we get a palindrome (42443366334424).

The spelling of 21232233111212 in words is "twenty-one trillion, two hundred thirty-two billion, two hundred thirty-three million, one hundred eleven thousand, two hundred twelve".