20201210012111 has 8 divisors (see below), whose sum is σ = 20671122281040. Its totient is φ = 19731303047232.

The previous prime is 20201210012057. The next prime is 20201210012119. The reversal of 20201210012111 is 11121001210202.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20201210012111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20201210012119) 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, 6977681 + ... + 9438773.

It is an arithmetic number, because the mean of its divisors is an integer number (2583890285130).

Almost surely, 2^{20201210012111} is an apocalyptic number.

20201210012111 is a deficient number, since it is larger than the sum of its proper divisors (469912268929).

20201210012111 is a wasteful number, since it uses less digits than its factorization.

20201210012111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2652025.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 20201210012111 its reverse (11121001210202), we get a palindrome (31322211222313).

The spelling of 20201210012111 in words is "twenty trillion, two hundred one billion, two hundred ten million, twelve thousand, one hundred eleven".