1222121120212 has 12 divisors (see below), whose sum is σ = 2139131433600. Its totient is φ = 610940710616.

The previous prime is 1222121120201. The next prime is 1222121120261. The reversal of 1222121120212 is 2120211212221.

It is a self number, because there is not a number n which added to its sum of digits gives 1222121120212.

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, 29939428 + ... + 29980219.

It is an arithmetic number, because the mean of its divisors is an integer number (178260952800).

Almost surely, 2^{1222121120212} is an apocalyptic number.

It is an amenable number.

1222121120212 is a deficient number, since it is larger than the sum of its proper divisors (917010313388).

1222121120212 is a wasteful number, since it uses less digits than its factorization.

1222121120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59924750 (or 59924748 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 1222121120212 its reverse (2120211212221), we get a palindrome (3342332332433).

The spelling of 1222121120212 in words is "one trillion, two hundred twenty-two billion, one hundred twenty-one million, one hundred twenty thousand, two hundred twelve".