22000121210105 has 16 divisors (see below), whose sum is σ = 29168447151744. Its totient is φ = 15844588573440.

The previous prime is 22000121210029. The next prime is 22000121210117. The reversal of 22000121210105 is 50101212100022.

It is not a de Polignac number, because 22000121210105 - 2⁸ = 22000121209849 is a prime.

It is a super-4 number, since 4×22000121210105⁴ (a number of 54 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5626627511 + ... + 5626631420.

It is an arithmetic number, because the mean of its divisors is an integer number (1823027946984).

Almost surely, 2^{22000121210105} is an apocalyptic number.

It is an amenable number.

22000121210105 is a deficient number, since it is larger than the sum of its proper divisors (7168325941639).

22000121210105 is a wasteful number, since it uses less digits than its factorization.

22000121210105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11253258976.

The product of its (nonzero) digits is 80, while the sum is 17.

Adding to 22000121210105 its reverse (50101212100022), we get a palindrome (72101333310127).

The spelling of 22000121210105 in words is "twenty-two trillion, one hundred twenty-one million, two hundred ten thousand, one hundred five".