21112110200222 has 4 divisors (see below), whose sum is σ = 31668165300336. Its totient is φ = 10556055100110.

The previous prime is 21112110200191. The next prime is 21112110200243. The reversal of 21112110200222 is 22200201121112.

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

It is a self number, because there is not a number n which added to its sum of digits gives 21112110200222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5278027550054 + ... + 5278027550057.

It is an arithmetic number, because the mean of its divisors is an integer number (7917041325084).

Almost surely, 2^{21112110200222} is an apocalyptic number.

21112110200222 is a deficient number, since it is larger than the sum of its proper divisors (10556055100114).

21112110200222 is a wasteful number, since it uses less digits than its factorization.

21112110200222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10556055100113.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 21112110200222 its reverse (22200201121112), we get a palindrome (43312311321334).

The spelling of 21112110200222 in words is "twenty-one trillion, one hundred twelve billion, one hundred ten million, two hundred thousand, two hundred twenty-two".