1222200012212 has 12 divisors (see below), whose sum is σ = 2138993797920. Its totient is φ = 611058927096.

The previous prime is 1222200012199. The next prime is 1222200012263. The reversal of 1222200012212 is 2122100022221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10202762 + ... + 10321857.

It is an arithmetic number, because the mean of its divisors is an integer number (178249483160).

Almost surely, 2^{1222200012212} is an apocalyptic number.

It is an amenable number.

1222200012212 is a deficient number, since it is larger than the sum of its proper divisors (916793785708).

1222200012212 is a wasteful number, since it uses less digits than its factorization.

1222200012212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20539510 (or 20539508 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1222200012212 its reverse (2122100022221), we get a palindrome (3344300034433).

The spelling of 1222200012212 in words is "one trillion, two hundred twenty-two billion, two hundred million, twelve thousand, two hundred twelve".