222121000202212 has 48 divisors (see below), whose sum is σ = 391573878696000. Its totient is φ = 110246411493504.

The previous prime is 222121000202197. The next prime is 222121000202249. The reversal of 222121000202212 is 212202000121222.

It is a self number, because there is not a number n which added to its sum of digits gives 222121000202212.

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, 369939339 + ... + 370539277.

It is an arithmetic number, because the mean of its divisors is an integer number (8157789139500).

Almost surely, 2^{222121000202212} is an apocalyptic number.

It is an amenable number.

222121000202212 is a deficient number, since it is larger than the sum of its proper divisors (169452878493788).

222121000202212 is a wasteful number, since it uses less digits than its factorization.

222121000202212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601468 (or 601466 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 222121000202212 its reverse (212202000121222), we get a palindrome (434323000323434).

The spelling of 222121000202212 in words is "two hundred twenty-two trillion, one hundred twenty-one billion, two hundred two thousand, two hundred twelve".