22011022121021 has 8 divisors (see below), whose sum is σ = 22030738381824. Its totient is φ = 21991309850880.

The previous prime is 22011022121017. The next prime is 22011022121089. The reversal of 22011022121021 is 12012122011022.

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 22011022121021 - 2² = 22011022121017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011022123021) 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, 10093700 + ... + 12079106.

It is an arithmetic number, because the mean of its divisors is an integer number (2753842297728).

Almost surely, 2^{22011022121021} is an apocalyptic number.

It is an amenable number.

22011022121021 is a deficient number, since it is larger than the sum of its proper divisors (19716260803).

22011022121021 is a wasteful number, since it uses less digits than its factorization.

22011022121021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1995331.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22011022121021 its reverse (12012122011022), we get a palindrome (34023144132043).

The spelling of 22011022121021 in words is "twenty-two trillion, eleven billion, twenty-two million, one hundred twenty-one thousand, twenty-one".