200011121111221 has 8 divisors (see below), whose sum is σ = 228617640466304. Its totient is φ = 171412977269520.

The previous prime is 200011121111177. The next prime is 200011121111233. The reversal of 200011121111221 is 122111121110002.

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

It is not a de Polignac number, because 200011121111221 - 2²⁹ = 200010584240309 is a prime.

It is a super-2 number, since 2×200011121111221² (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 = 200011121111195 and 200011121111204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200011121111521) 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, 2093827170 + ... + 2093922691.

It is an arithmetic number, because the mean of its divisors is an integer number (28577205058288).

Almost surely, 2^{200011121111221} is an apocalyptic number.

It is an amenable number.

200011121111221 is a deficient number, since it is larger than the sum of its proper divisors (28606519355083).

200011121111221 is an equidigital number, since it uses as much as digits as its factorization.

200011121111221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4187756691.

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

Adding to 200011121111221 its reverse (122111121110002), we get a palindrome (322122242221223).

The spelling of 200011121111221 in words is "two hundred trillion, eleven billion, one hundred twenty-one million, one hundred eleven thousand, two hundred twenty-one".