22011222222212 has 24 divisors (see below), whose sum is σ = 38606139586560. Its totient is φ = 10980903870720.

The previous prime is 22011222222181. The next prime is 22011222222247. The reversal of 22011222222212 is 21222222211022.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11297012 + ... + 13101332.

It is an arithmetic number, because the mean of its divisors is an integer number (1608589149440).

Almost surely, 2^{22011222222212} is an apocalyptic number.

It is an amenable number.

22011222222212 is a deficient number, since it is larger than the sum of its proper divisors (16594917364348).

22011222222212 is a wasteful number, since it uses less digits than its factorization.

22011222222212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1811171 (or 1811169 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 22011222222212 its reverse (21222222211022), we get a palindrome (43233444433234).

The spelling of 22011222222212 in words is "twenty-two trillion, eleven billion, two hundred twenty-two million, two hundred twenty-two thousand, two hundred twelve".