20212021200111 has 16 divisors (see below), whose sum is σ = 29348483683680. Its totient is φ = 12298412206080.

The previous prime is 20212021200047. The next prime is 20212021200167. The reversal of 20212021200111 is 11100212021202.

It is not a de Polignac number, because 20212021200111 - 2⁶ = 20212021200047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212021200211) 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, 2911552450 + ... + 2911559391.

It is an arithmetic number, because the mean of its divisors is an integer number (1834280230230).

Almost surely, 2^{20212021200111} is an apocalyptic number.

20212021200111 is a deficient number, since it is larger than the sum of its proper divisors (9136462483569).

20212021200111 is a wasteful number, since it uses less digits than its factorization.

20212021200111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5823111946.

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

Adding to 20212021200111 its reverse (11100212021202), we get a palindrome (31312233221313).

The spelling of 20212021200111 in words is "twenty trillion, two hundred twelve billion, twenty-one million, two hundred thousand, one hundred eleven".