20110022122021 has 16 divisors (see below), whose sum is σ = 21871737312768. Its totient is φ = 18378997416000.

The previous prime is 20110022121997. The next prime is 20110022122067. The reversal of 20110022122021 is 12022122001102.

It is a happy number.

It is not a de Polignac number, because 20110022122021 - 2⁵ = 20110022121989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20110022121986 and 20110022122004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110022122121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125583276 + ... + 125743306.

It is an arithmetic number, because the mean of its divisors is an integer number (1366983582048).

Almost surely, 2^{20110022122021} is an apocalyptic number.

It is an amenable number.

20110022122021 is a deficient number, since it is larger than the sum of its proper divisors (1761715190747).

20110022122021 is a wasteful number, since it uses less digits than its factorization.

20110022122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255852.

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

Adding to 20110022122021 its reverse (12022122001102), we get a palindrome (32132144123123).

The spelling of 20110022122021 in words is "twenty trillion, one hundred ten billion, twenty-two million, one hundred twenty-two thousand, twenty-one".