22120001212012 has 18 divisors (see below), whose sum is σ = 42549010596764. Its totient is φ = 10054546005240.

The previous prime is 22120001211989. The next prime is 22120001212019. The reversal of 22120001212012 is 21021210002122.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (22120001212019) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22851240438 + ... + 22851241405.

Almost surely, 2^{22120001212012} is an apocalyptic number.

22120001212012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22120001212012 is a deficient number, since it is larger than the sum of its proper divisors (20429009384752).

22120001212012 is a wasteful number, since it uses less digits than its factorization.

22120001212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45702481869 (or 45702481856 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22120001212012 its reverse (21021210002122), we get a palindrome (43141211214134).

The spelling of 22120001212012 in words is "twenty-two trillion, one hundred twenty billion, one million, two hundred twelve thousand, twelve".