21022220201011 has 32 divisors (see below), whose sum is σ = 22177234944000. Its totient is φ = 19887932449440.

The previous prime is 21022220200999. The next prime is 21022220201023. The reversal of 21022220201011 is 11010202222012.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (21022220200999) and next prime (21022220201023).

It is a cyclic number.

It is not a de Polignac number, because 21022220201011 - 2²⁵ = 21022186646579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21022220201111) 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, 5347802716 + ... + 5347806646.

It is an arithmetic number, because the mean of its divisors is an integer number (693038592000).

Almost surely, 2^{21022220201011} is an apocalyptic number.

21022220201011 is a deficient number, since it is larger than the sum of its proper divisors (1155014742989).

21022220201011 is a wasteful number, since it uses less digits than its factorization.

21022220201011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7039.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 21022220201011 its reverse (11010202222012), we get a palindrome (32032422423023).

The spelling of 21022220201011 in words is "twenty-one trillion, twenty-two billion, two hundred twenty million, two hundred one thousand, eleven".