21022022110121 has 8 divisors (see below), whose sum is σ = 21733166232384. Its totient is φ = 20318403322800.

The previous prime is 21022022110081. The next prime is 21022022110189. The reversal of 21022022110121 is 12101122022012.

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

It is a cyclic number.

It is not a de Polignac number, because 21022022110121 - 2¹⁸ = 21022021847977 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 21022022110121.

It is not an unprimeable number, because it can be changed into a prime (21022022112121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1881328055 + ... + 1881339228.

It is an arithmetic number, because the mean of its divisors is an integer number (2716645779048).

Almost surely, 2^{21022022110121} is an apocalyptic number.

It is an amenable number.

21022022110121 is a deficient number, since it is larger than the sum of its proper divisors (711144122263).

21022022110121 is a wasteful number, since it uses less digits than its factorization.

21022022110121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3762667471.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 21022022110121 its reverse (12101122022012), we get a palindrome (33123144132133).

The spelling of 21022022110121 in words is "twenty-one trillion, twenty-two billion, twenty-two million, one hundred ten thousand, one hundred twenty-one".