222220120021212 has 48 divisors (see below), whose sum is σ = 518576033912832. Its totient is φ = 74064456797760.

The previous prime is 222220120021171. The next prime is 222220120021223. The reversal of 222220120021212 is 212120021022222.

222220120021212 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5339113762 + ... + 5339155382.

It is an arithmetic number, because the mean of its divisors is an integer number (10803667373184).

Almost surely, 2^{222220120021212} is an apocalyptic number.

It is an amenable number.

222220120021212 is an abundant number, since it is smaller than the sum of its proper divisors (296355913891620).

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

222220120021212 is a wasteful number, since it uses less digits than its factorization.

222220120021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84498 (or 84496 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 222220120021212 its reverse (212120021022222), we get a palindrome (434340141043434).

The spelling of 222220120021212 in words is "two hundred twenty-two trillion, two hundred twenty billion, one hundred twenty million, twenty-one thousand, two hundred twelve".