20110021122021 has 8 divisors (see below), whose sum is σ = 26817553074144. Its totient is φ = 13404584958960.

The previous prime is 20110021122013. The next prime is 20110021122109. The reversal of 20110021122021 is 12022112001102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20110021122021 - 2³ = 20110021122013 is a prime.

It is a super-2 number, since 2×20110021122021² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110021122001) 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 7 ways as a sum of consecutive naturals, for example, 523924875 + ... + 523963256.

It is an arithmetic number, because the mean of its divisors is an integer number (3352194134268).

Almost surely, 2^{20110021122021} is an apocalyptic number.

It is an amenable number.

20110021122021 is a deficient number, since it is larger than the sum of its proper divisors (6707531952123).

20110021122021 is a wasteful number, since it uses less digits than its factorization.

20110021122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047894531.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20110021122021 its reverse (12022112001102), we get a palindrome (32132133123123).

The spelling of 20110021122021 in words is "twenty trillion, one hundred ten billion, twenty-one million, one hundred twenty-two thousand, twenty-one".