21222201210022 has 16 divisors (see below), whose sum is σ = 31911784183440. Its totient is φ = 10584952662528.

The previous prime is 21222201209981. The next prime is 21222201210137. The reversal of 21222201210022 is 22001210222212.

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 7 ways as a sum of consecutive naturals, for example, 96229 + ... + 6515647.

It is an arithmetic number, because the mean of its divisors is an integer number (1994486511465).

Almost surely, 2^{21222201210022} is an apocalyptic number.

21222201210022 is a deficient number, since it is larger than the sum of its proper divisors (10689582973418).

21222201210022 is a wasteful number, since it uses less digits than its factorization.

21222201210022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6423495.

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

Adding to 21222201210022 its reverse (22001210222212), we get a palindrome (43223411432234).

The spelling of 21222201210022 in words is "twenty-one trillion, two hundred twenty-two billion, two hundred one million, two hundred ten thousand, twenty-two".