20001211000211 has 8 divisors (see below), whose sum is σ = 22858558216704. Its totient is φ = 17143871623560.

The previous prime is 20001211000187. The next prime is 20001211000259. The reversal of 20001211000211 is 11200011210002.

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-20001211000211 is a prime.

It is a super-2 number, since 2×20001211000211² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20001211000192 and 20001211000201.

It is not an unprimeable number, because it can be changed into a prime (20001211000261) 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, 5299526 + ... + 8251508.

It is an arithmetic number, because the mean of its divisors is an integer number (2857319777088).

Almost surely, 2^{20001211000211} is an apocalyptic number.

20001211000211 is a deficient number, since it is larger than the sum of its proper divisors (2857347216493).

20001211000211 is an equidigital number, since it uses as much as digits as its factorization.

20001211000211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3919921.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20001211000211 its reverse (11200011210002), we get a palindrome (31201222210213).

The spelling of 20001211000211 in words is "twenty trillion, one billion, two hundred eleven million, two hundred eleven", and thus it is an aban number.