22121001220411 has 32 divisors (see below), whose sum is σ = 23459363596800. Its totient is φ = 20816984584704.

The previous prime is 22121001220387. The next prime is 22121001220469. The reversal of 22121001220411 is 11402210012122.

It is a cyclic number.

It is not a de Polignac number, because 22121001220411 - 2⁵ = 22121001220379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22121001220471) 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, 589764520 + ... + 589802026.

It is an arithmetic number, because the mean of its divisors is an integer number (733105112400).

Almost surely, 2^{22121001220411} is an apocalyptic number.

22121001220411 is a deficient number, since it is larger than the sum of its proper divisors (1338362376389).

22121001220411 is a wasteful number, since it uses less digits than its factorization.

22121001220411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39315.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 22121001220411 its reverse (11402210012122), we get a palindrome (33523211232533).

The spelling of 22121001220411 in words is "twenty-two trillion, one hundred twenty-one billion, one million, two hundred twenty thousand, four hundred eleven".