22011001212212 has 12 divisors (see below), whose sum is σ = 38559085894560. Its totient is φ = 10994119528056.

The previous prime is 22011001212199. The next prime is 22011001212217. The reversal of 22011001212212 is 21221210011022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011001212217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2845265162 + ... + 2845272897.

It is an arithmetic number, because the mean of its divisors is an integer number (3213257157880).

Almost surely, 2^{22011001212212} is an apocalyptic number.

It is an amenable number.

22011001212212 is a deficient number, since it is larger than the sum of its proper divisors (16548084682348).

22011001212212 is a wasteful number, since it uses less digits than its factorization.

22011001212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5690539030 (or 5690539028 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22011001212212 its reverse (21221210011022), we get a palindrome (43232211223234).

The spelling of 22011001212212 in words is "twenty-two trillion, eleven billion, one million, two hundred twelve thousand, two hundred twelve".