20221011212011 has 4 divisors (see below), whose sum is σ = 20221023040432. Its totient is φ = 20220999383592.

The previous prime is 20221011211969. The next prime is 20221011212023. The reversal of 20221011212011 is 11021211012202.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20221011212011 - 2⁷ = 20221011211883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20221011215011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2805096 + ... + 6950581.

It is an arithmetic number, because the mean of its divisors is an integer number (5055255760108).

Almost surely, 2^{20221011212011} is an apocalyptic number.

20221011212011 is a deficient number, since it is larger than the sum of its proper divisors (11828421).

20221011212011 is an equidigital number, since it uses as much as digits as its factorization.

20221011212011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11828420.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20221011212011 its reverse (11021211012202), we get a palindrome (31242222224213).

The spelling of 20221011212011 in words is "twenty trillion, two hundred twenty-one billion, eleven million, two hundred twelve thousand, eleven".