122212222110021 has 8 divisors (see below), whose sum is σ = 162966903940480. Its totient is φ = 81466177509792.

The previous prime is 122212222110007. The next prime is 122212222110047. The reversal of 122212222110021 is 120011222212221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 122212222110021 - 2³¹ = 122210074626373 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122212222110021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122212222110001) 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 7 ways as a sum of consecutive naturals, for example, 2159274541 + ... + 2159331138.

It is an arithmetic number, because the mean of its divisors is an integer number (20370862992560).

Almost surely, 2^{122212222110021} is an apocalyptic number.

It is an amenable number.

122212222110021 is a deficient number, since it is larger than the sum of its proper divisors (40754681830459).

122212222110021 is an equidigital number, since it uses as much as digits as its factorization.

122212222110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4318615115.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 122212222110021 its reverse (120011222212221), we get a palindrome (242223444322242).

The spelling of 122212222110021 in words is "one hundred twenty-two trillion, two hundred twelve billion, two hundred twenty-two million, one hundred ten thousand, twenty-one".