1222021340211 has 16 divisors (see below), whose sum is σ = 1862228793600. Its totient is φ = 698260019808.

The previous prime is 1222021340201. The next prime is 1222021340279. The reversal of 1222021340211 is 1120431202221.

It is a happy number.

It is not a de Polignac number, because 1222021340211 - 2⁹ = 1222021339699 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1222021340201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1180116 + ... + 1958753.

It is an arithmetic number, because the mean of its divisors is an integer number (116389299600).

Almost surely, 2^{1222021340211} is an apocalyptic number.

1222021340211 is a deficient number, since it is larger than the sum of its proper divisors (640207453389).

1222021340211 is a wasteful number, since it uses less digits than its factorization.

1222021340211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3157418.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 1222021340211 its reverse (1120431202221), we get a palindrome (2342452542432).

The spelling of 1222021340211 in words is "one trillion, two hundred twenty-two billion, twenty-one million, three hundred forty thousand, two hundred eleven".