20012000111211 has 16 divisors (see below), whose sum is σ = 28027172067840. Its totient is φ = 12676763668800.

The previous prime is 20012000111203. The next prime is 20012000111219. The reversal of 20012000111211 is 11211100021002.

It is an interprime number because it is at equal distance from previous prime (20012000111203) and next prime (20012000111219).

It is not a de Polignac number, because 20012000111211 - 2³ = 20012000111203 is a prime.

It is a super-2 number, since 2×20012000111211² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20012000111219) 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, 960350466 + ... + 960371303.

It is an arithmetic number, because the mean of its divisors is an integer number (1751698254240).

Almost surely, 2^{20012000111211} is an apocalyptic number.

20012000111211 is a deficient number, since it is larger than the sum of its proper divisors (8015171956629).

20012000111211 is a wasteful number, since it uses less digits than its factorization.

20012000111211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1920721946.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 20012000111211 its reverse (11211100021002), we get a palindrome (31223100132213).

The spelling of 20012000111211 in words is "twenty trillion, twelve billion, one hundred eleven thousand, two hundred eleven".