22120211101021 has 16 divisors (see below), whose sum is σ = 24142786859520. Its totient is φ = 20099577919680.

The previous prime is 22120211101019. The next prime is 22120211101091. The reversal of 22120211101021 is 12010111202122.

It is a cyclic number.

It is not a de Polignac number, because 22120211101021 - 2¹ = 22120211101019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22120211100986 and 22120211101004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22120211101091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 473774740 + ... + 473821426.

It is an arithmetic number, because the mean of its divisors is an integer number (1508924178720).

Almost surely, 2^{22120211101021} is an apocalyptic number.

It is an amenable number.

22120211101021 is a deficient number, since it is larger than the sum of its proper divisors (2022575758499).

22120211101021 is a wasteful number, since it uses less digits than its factorization.

22120211101021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66564.

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

Adding to 22120211101021 its reverse (12010111202122), we get a palindrome (34130322303143).

The spelling of 22120211101021 in words is "twenty-two trillion, one hundred twenty billion, two hundred eleven million, one hundred one thousand, twenty-one".