20021101112211 has 8 divisors (see below), whose sum is σ = 26886850415040. Its totient is φ = 13251376275432.

The previous prime is 20021101112197. The next prime is 20021101112213. The reversal of 20021101112211 is 11221110112002.

It is a happy number.

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

It is not a de Polignac number, because 20021101112211 - 2⁷ = 20021101112083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20021101112213) 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, 24006116025 + ... + 24006116858.

It is an arithmetic number, because the mean of its divisors is an integer number (3360856301880).

Almost surely, 2^{20021101112211} is an apocalyptic number.

20021101112211 is a deficient number, since it is larger than the sum of its proper divisors (6865749302829).

20021101112211 is a wasteful number, since it uses less digits than its factorization.

20021101112211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48012233025.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 20021101112211 its reverse (11221110112002), we get a palindrome (31242211224213).

The spelling of 20021101112211 in words is "twenty trillion, twenty-one billion, one hundred one million, one hundred twelve thousand, two hundred eleven".