22110101121121 has 4 divisors (see below), whose sum is σ = 23810878130452. Its totient is φ = 20409324111792.

The previous prime is 22110101121067. The next prime is 22110101121133. The reversal of 22110101121121 is 12112110101122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6394268058721 + 15715833062400 = 2528689^2 + 3964320^2 .

It is a cyclic number.

It is not a de Polignac number, because 22110101121121 - 2¹⁹ = 22110100596833 is a prime.

It is a super-2 number, since 2×22110101121121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22110101121095 and 22110101121104.

It is not an unprimeable number, because it can be changed into a prime (22110101121221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 850388504646 + ... + 850388504671.

It is an arithmetic number, because the mean of its divisors is an integer number (5952719532613).

Almost surely, 2^{22110101121121} is an apocalyptic number.

It is an amenable number.

22110101121121 is a deficient number, since it is larger than the sum of its proper divisors (1700777009331).

22110101121121 is a wasteful number, since it uses less digits than its factorization.

22110101121121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1700777009330.

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

Adding to 22110101121121 its reverse (12112110101122), we get a palindrome (34222211222243).

The spelling of 22110101121121 in words is "twenty-two trillion, one hundred ten billion, one hundred one million, one hundred twenty-one thousand, one hundred twenty-one".