22120111002121 has 32 divisors (see below), whose sum is σ = 25364964827520. Its totient is φ = 19105595712000.

The previous prime is 22120111002103. The next prime is 22120111002137. The reversal of 22120111002121 is 12120011102122.

It is a cyclic number.

It is not a de Polignac number, because 22120111002121 - 2⁹ = 22120111001609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22120111002095 and 22120111002104.

It is not an unprimeable number, because it can be changed into a prime (22120111002151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3145701 + ... + 7357693.

It is an arithmetic number, because the mean of its divisors is an integer number (792655150860).

Almost surely, 2^{22120111002121} is an apocalyptic number.

It is an amenable number.

22120111002121 is a deficient number, since it is larger than the sum of its proper divisors (3244853825399).

22120111002121 is a wasteful number, since it uses less digits than its factorization.

22120111002121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4212297.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 22120111002121 its reverse (12120011102122), we get a palindrome (34240122104243).

The spelling of 22120111002121 in words is "twenty-two trillion, one hundred twenty billion, one hundred eleven million, two thousand, one hundred twenty-one".