22001001222212 has 24 divisors (see below), whose sum is σ = 40600146300000. Its totient is φ = 10403016169536.

The previous prime is 22001001222209. The next prime is 22001001222281. The reversal of 22001001222212 is 21222210010022.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257050337 + ... + 257135912.

It is an arithmetic number, because the mean of its divisors is an integer number (1691672762500).

Almost surely, 2^{22001001222212} is an apocalyptic number.

It is an amenable number.

22001001222212 is a deficient number, since it is larger than the sum of its proper divisors (18599145077788).

22001001222212 is a wasteful number, since it uses less digits than its factorization.

22001001222212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514186835 (or 514186833 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22001001222212 its reverse (21222210010022), we get a palindrome (43223211232234).

The spelling of 22001001222212 in words is "twenty-two trillion, one billion, one million, two hundred twenty-two thousand, two hundred twelve".