21121122012301 has 16 divisors (see below), whose sum is σ = 21967909311040. Its totient is φ = 20290538257920.

The previous prime is 21121122012299. The next prime is 21121122012433. The reversal of 21121122012301 is 10321022112112.

It is not a de Polignac number, because 21121122012301 - 2¹ = 21121122012299 is a prime.

It is a super-2 number, since 2×21121122012301² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21121122016301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45854326 + ... + 46312648.

It is an arithmetic number, because the mean of its divisors is an integer number (1372994331940).

Almost surely, 2^{21121122012301} is an apocalyptic number.

It is an amenable number.

21121122012301 is a deficient number, since it is larger than the sum of its proper divisors (846787298739).

21121122012301 is a wasteful number, since it uses less digits than its factorization.

21121122012301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475996.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 21121122012301 its reverse (10321022112112), we get a palindrome (31442144124413).

The spelling of 21121122012301 in words is "twenty-one trillion, one hundred twenty-one billion, one hundred twenty-two million, twelve thousand, three hundred one".