1211202022222 has 8 divisors (see below), whose sum is σ = 1833470951400. Its totient is φ = 600045038424.

The previous prime is 1211202022189. The next prime is 1211202022223. The reversal of 1211202022222 is 2222202021121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1211202022222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211202022223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2777986072 + ... + 2777986507.

It is an arithmetic number, because the mean of its divisors is an integer number (229183868925).

Almost surely, 2^{1211202022222} is an apocalyptic number.

1211202022222 is a deficient number, since it is larger than the sum of its proper divisors (622268929178).

1211202022222 is a wasteful number, since it uses less digits than its factorization.

1211202022222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5555972690.

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

Adding to 1211202022222 its reverse (2222202021121), we get a palindrome (3433404043343).

The spelling of 1211202022222 in words is "one trillion, two hundred eleven billion, two hundred two million, twenty-two thousand, two hundred twenty-two".