22021101111121 has 8 divisors (see below), whose sum is σ = 25167070730880. Its totient is φ = 18875155999488.

The previous prime is 22021101111109. The next prime is 22021101111127. The reversal of 22021101111121 is 12111110112022.

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 22021101111121 - 2¹³ = 22021101102929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22021101111095 and 22021101111104.

It is not an unprimeable number, because it can be changed into a prime (22021101111127) 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, 4159501 + ... + 7832218.

It is an arithmetic number, because the mean of its divisors is an integer number (3145883841360).

Almost surely, 2^{22021101111121} is an apocalyptic number.

It is an amenable number.

22021101111121 is a deficient number, since it is larger than the sum of its proper divisors (3145969619759).

22021101111121 is a wasteful number, since it uses less digits than its factorization.

22021101111121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12254063.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 22021101111121 its reverse (12111110112022), we get a palindrome (34132211223143).

Subtracting from 22021101111121 its reverse (12111110112022), we obtain a palindrome (9909990999099).

The spelling of 22021101111121 in words is "twenty-two trillion, twenty-one billion, one hundred one million, one hundred eleven thousand, one hundred twenty-one".