221010002100011 has 4 divisors (see below), whose sum is σ = 225712342570272. Its totient is φ = 216307661629752.

The previous prime is 221010002100007. The next prime is 221010002100029. The reversal of 221010002100011 is 110001200010122.

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

It is a cyclic number.

It is not a de Polignac number, because 221010002100011 - 2² = 221010002100007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221010002099965 and 221010002100001.

It is not an unprimeable number, because it can be changed into a prime (221010002100071) 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, 2351170235060 + ... + 2351170235153.

It is an arithmetic number, because the mean of its divisors is an integer number (56428085642568).

Almost surely, 2^{221010002100011} is an apocalyptic number.

221010002100011 is a deficient number, since it is larger than the sum of its proper divisors (4702340470261).

221010002100011 is an equidigital number, since it uses as much as digits as its factorization.

221010002100011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4702340470260.

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

Adding to 221010002100011 its reverse (110001200010122), we get a palindrome (331011202110133).

The spelling of 221010002100011 in words is "two hundred twenty-one trillion, ten billion, two million, one hundred thousand, eleven".