20110211022021 has 8 divisors (see below), whose sum is σ = 26813636451360. Its totient is φ = 13406796470352.

The previous prime is 20110211022001. The next prime is 20110211022059. The reversal of 20110211022021 is 12022011201102.

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

It is not a de Polignac number, because 20110211022021 - 2²³ = 20110202633413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110211022001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3887391 + ... + 7438563.

It is an arithmetic number, because the mean of its divisors is an integer number (3351704556420).

Almost surely, 2^{20110211022021} is an apocalyptic number.

It is an amenable number.

20110211022021 is a deficient number, since it is larger than the sum of its proper divisors (6703425429339).

20110211022021 is a wasteful number, since it uses less digits than its factorization.

20110211022021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5438835.

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

Adding to 20110211022021 its reverse (12022011201102), we get a palindrome (32132222223123).

The spelling of 20110211022021 in words is "twenty trillion, one hundred ten billion, two hundred eleven million, twenty-two thousand, twenty-one".