22112121101021 has 8 divisors (see below), whose sum is σ = 25412174291520. Its totient is φ = 18847362597408.

The previous prime is 22112121101003. The next prime is 22112121101041. The reversal of 22112121101021 is 12010112121122.

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 22112121101021 - 2⁶ = 22112121100957 is a prime.

It is a super-2 number, since 2×22112121101021² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22112121101041) by changing a digit.

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, 8823670376 + ... + 8823672881.

It is an arithmetic number, because the mean of its divisors is an integer number (3176521786440).

Almost surely, 2^{22112121101021} is an apocalyptic number.

It is an amenable number.

22112121101021 is a deficient number, since it is larger than the sum of its proper divisors (3300053190499).

22112121101021 is a wasteful number, since it uses less digits than its factorization.

22112121101021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17647343443.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 22112121101021 its reverse (12010112121122), we get a palindrome (34122233222143).

The spelling of 22112121101021 in words is "twenty-two trillion, one hundred twelve billion, one hundred twenty-one million, one hundred one thousand, twenty-one".