221200221220111 has 8 divisors (see below), whose sum is σ = 252800447588640. Its totient is φ = 189600043543008.

The previous prime is 221200221220103. The next prime is 221200221220117. The reversal of 221200221220111 is 111022122002122.

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

It is not a de Polignac number, because 221200221220111 - 2³ = 221200221220103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221200221220117) 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, 1855036 + ... + 21114961.

It is an arithmetic number, because the mean of its divisors is an integer number (31600055948580).

Almost surely, 2^{221200221220111} is an apocalyptic number.

221200221220111 is a deficient number, since it is larger than the sum of its proper divisors (31600226368529).

221200221220111 is a wasteful number, since it uses less digits than its factorization.

221200221220111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24345713.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 221200221220111 its reverse (111022122002122), we get a palindrome (332222343222233).

The spelling of 221200221220111 in words is "two hundred twenty-one trillion, two hundred billion, two hundred twenty-one million, two hundred twenty thousand, one hundred eleven".