22011121210121 has 16 divisors (see below), whose sum is σ = 22930756430400. Its totient is φ = 21109732896000.

The previous prime is 22011121210109. The next prime is 22011121210123. The reversal of 22011121210121 is 12101212111022.

It is a cyclic number.

It is not a de Polignac number, because 22011121210121 - 2³⁴ = 21993941340937 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 22011121210121.

It is not an unprimeable number, because it can be changed into a prime (22011121210123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112630190 + ... + 112825448.

It is an arithmetic number, because the mean of its divisors is an integer number (1433172276900).

Almost surely, 2^{22011121210121} is an apocalyptic number.

It is an amenable number.

22011121210121 is a deficient number, since it is larger than the sum of its proper divisors (919635220279).

22011121210121 is a wasteful number, since it uses less digits than its factorization.

22011121210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241960.

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

Adding to 22011121210121 its reverse (12101212111022), we get a palindrome (34112333321143).

Subtracting from 22011121210121 its reverse (12101212111022), we obtain a palindrome (9909909099099).

The spelling of 22011121210121 in words is "twenty-two trillion, eleven billion, one hundred twenty-one million, two hundred ten thousand, one hundred twenty-one".