22210000001212 has 24 divisors (see below), whose sum is σ = 39034911484800. Its totient is φ = 11057262031536.

The previous prime is 22210000001191. The next prime is 22210000001213. The reversal of 22210000001212 is 21210000001222.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22210000001192 and 22210000001201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22210000001213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10788558 + ... + 12681205.

It is an arithmetic number, because the mean of its divisors is an integer number (1626454645200).

Almost surely, 2^{22210000001212} is an apocalyptic number.

It is an amenable number.

22210000001212 is a deficient number, since it is larger than the sum of its proper divisors (16824911483588).

22210000001212 is a wasteful number, since it uses less digits than its factorization.

22210000001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23470785 (or 23470783 counting only the distinct ones).

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

Adding to 22210000001212 its reverse (21210000001222), we get a palindrome (43420000002434).

The spelling of 22210000001212 in words is "twenty-two trillion, two hundred ten billion, one thousand, two hundred twelve".