1211222020222 has 8 divisors (see below), whose sum is σ = 1816848646200. Its totient is φ = 605605804824.

The previous prime is 1211222020199. The next prime is 1211222020231. The reversal of 1211222020222 is 2220202221121.

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 1211222020222.

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, 2304972 + ... + 2781247.

It is an arithmetic number, because the mean of its divisors is an integer number (227106080775).

Almost surely, 2^{1211222020222} is an apocalyptic number.

1211222020222 is a deficient number, since it is larger than the sum of its proper divisors (605626625978).

1211222020222 is a wasteful number, since it uses less digits than its factorization.

1211222020222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5205290.

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

Adding to 1211222020222 its reverse (2220202221121), we get a palindrome (3431424241343).

The spelling of 1211222020222 in words is "one trillion, two hundred eleven billion, two hundred twenty-two million, twenty thousand, two hundred twenty-two".