1211022020222 has 32 divisors (see below), whose sum is σ = 2166823526400. Its totient is φ = 496323894528.

The previous prime is 1211022020189. The next prime is 1211022020231. The reversal of 1211022020222 is 2220202201121.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1211022020222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 887054 + ... + 1791342.

It is an arithmetic number, because the mean of its divisors is an integer number (67713235200).

Almost surely, 2^{1211022020222} is an apocalyptic number.

1211022020222 is a deficient number, since it is larger than the sum of its proper divisors (955801506178).

1211022020222 is a wasteful number, since it uses less digits than its factorization.

1211022020222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908480.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1211022020222 its reverse (2220202201121), we get a palindrome (3431224221343).

The spelling of 1211022020222 in words is "one trillion, two hundred eleven billion, twenty-two million, twenty thousand, two hundred twenty-two".