211220010200011 has 4 divisors (see below), whose sum is σ = 215714052970272. Its totient is φ = 206725967429752.

The previous prime is 211220010199993. The next prime is 211220010200021. The reversal of 211220010200011 is 110002010022112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211220010200011 is a prime.

It is a super-2 number, since 2×211220010200011² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211220010199964 and 211220010200000.

It is not an unprimeable number, because it can be changed into a prime (211220010200021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2247021385060 + ... + 2247021385153.

It is an arithmetic number, because the mean of its divisors is an integer number (53928513242568).

Almost surely, 2^{211220010200011} is an apocalyptic number.

211220010200011 is a deficient number, since it is larger than the sum of its proper divisors (4494042770261).

211220010200011 is an equidigital number, since it uses as much as digits as its factorization.

211220010200011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4494042770260.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 211220010200011 its reverse (110002010022112), we get a palindrome (321222020222123).

The spelling of 211220010200011 in words is "two hundred eleven trillion, two hundred twenty billion, ten million, two hundred thousand, eleven".