20111200001211 has 8 divisors (see below), whose sum is σ = 29252654547264. Its totient is φ = 12188606061320.

The previous prime is 20111200001131. The next prime is 20111200001251. The reversal of 20111200001211 is 11210000211102.

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

It is a cyclic number.

It is not a de Polignac number, because 20111200001211 - 2⁷ = 20111200001083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20111200001251) 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, 304715151501 + ... + 304715151566.

It is an arithmetic number, because the mean of its divisors is an integer number (3656581818408).

Almost surely, 2^{20111200001211} is an apocalyptic number.

20111200001211 is a deficient number, since it is larger than the sum of its proper divisors (9141454546053).

20111200001211 is a wasteful number, since it uses less digits than its factorization.

20111200001211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609430303081.

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

Adding to 20111200001211 its reverse (11210000211102), we get a palindrome (31321200212313).

The spelling of 20111200001211 in words is "twenty trillion, one hundred eleven billion, two hundred million, one thousand, two hundred eleven".