22120021210212 has 72 divisors (see below), whose sum is σ = 56514419060736. Its totient is φ = 7294558892544.

The previous prime is 22120021210169. The next prime is 22120021210277. The reversal of 22120021210212 is 21201212002122.

It is a happy number.

22120021210212 is a `hidden beast` number, since 2 + 21 + 200 + 21 + 210 + 212 = 666.

22120021210212 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 23 ways as a sum of consecutive naturals, for example, 5238988 + ... + 8466819.

Almost surely, 2^{22120021210212} is an apocalyptic number.

It is an amenable number.

22120021210212 is an abundant number, since it is smaller than the sum of its proper divisors (34394397850524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22120021210212 is a wasteful number, since it uses less digits than its factorization.

22120021210212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13706297 (or 13706292 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 22120021210212 its reverse (21201212002122), we get a palindrome (43321233212334).

The spelling of 22120021210212 in words is "twenty-two trillion, one hundred twenty billion, twenty-one million, two hundred ten thousand, two hundred twelve".