21100201122202 has 32 divisors (see below), whose sum is σ = 33678334255104. Its totient is φ = 9880289376000.

The previous prime is 21100201122191. The next prime is 21100201122233. The reversal of 21100201122202 is 20222110200112.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15346452 + ... + 16664752.

It is an arithmetic number, because the mean of its divisors is an integer number (1052447945472).

Almost surely, 2^{21100201122202} is an apocalyptic number.

21100201122202 is a deficient number, since it is larger than the sum of its proper divisors (12578133132902).

21100201122202 is a wasteful number, since it uses less digits than its factorization.

21100201122202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320654.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 21100201122202 its reverse (20222110200112), we get a palindrome (41322311322314).

The spelling of 21100201122202 in words is "twenty-one trillion, one hundred billion, two hundred one million, one hundred twenty-two thousand, two hundred two".