22120001212 has 12 divisors (see below), whose sum is σ = 38753847496. Its totient is φ = 11047473360.

The previous prime is 22120001203. The next prime is 22120001221. The reversal of 22120001212 is 21210002122.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22120001203) and next prime (22120001221).

It is a junction number, because it is equal to n+sod(n) for n = 22120001192 and 22120001201.

It is a congruent number.

It is an unprimeable number.

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, 3127839 + ... + 3134902.

Almost surely, 2^22120001212 is an apocalyptic number.

It is an amenable number.

22120001212 is a deficient number, since it is larger than the sum of its proper divisors (16633846284).

22120001212 is a wasteful number, since it uses less digits than its factorization.

22120001212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6263628 (or 6263626 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22120001212 its reverse (21210002122), we get a palindrome (43330003334).

The spelling of 22120001212 in words is "twenty-two billion, one hundred twenty million, one thousand, two hundred twelve".