221211210000011 has 8 divisors (see below), whose sum is σ = 275795794285824. Its totient is φ = 172372371428520.

The previous prime is 221211209999963. The next prime is 221211210000043. The reversal of 221211210000011 is 110000012112122.

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 221211210000011 - 2⁶ = 221211209999947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221211210008011) 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, 1436436428495 + ... + 1436436428648.

It is an arithmetic number, because the mean of its divisors is an integer number (34474474285728).

Almost surely, 2^{221211210000011} is an apocalyptic number.

221211210000011 is a deficient number, since it is larger than the sum of its proper divisors (54584584285813).

221211210000011 is a wasteful number, since it uses less digits than its factorization.

221211210000011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2872872857161.

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

Adding to 221211210000011 its reverse (110000012112122), we get a palindrome (331211222112133).

The spelling of 221211210000011 in words is "two hundred twenty-one trillion, two hundred eleven billion, two hundred ten million, eleven", and thus it is an aban number.