212211221221022 has 16 divisors (see below), whose sum is σ = 319312120982400. Its totient is φ = 105774048695640.

The previous prime is 212211221221007. The next prime is 212211221221033. The reversal of 212211221221022 is 220122122112212.

It is a super-3 number, since 3×212211221221022³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48172004 + ... + 52392407.

It is an arithmetic number, because the mean of its divisors is an integer number (19957007561400).

Almost surely, 2^{212211221221022} is an apocalyptic number.

212211221221022 is a deficient number, since it is larger than the sum of its proper divisors (107100899761378).

212211221221022 is a wasteful number, since it uses less digits than its factorization.

212211221221022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100567711.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 212211221221022 its reverse (220122122112212), we get a palindrome (432333343333234).

The spelling of 212211221221022 in words is "two hundred twelve trillion, two hundred eleven billion, two hundred twenty-one million, two hundred twenty-one thousand, twenty-two".