21100211223202 has 16 divisors (see below), whose sum is σ = 32672928570624. Its totient is φ = 10209269070000.

The previous prime is 21100211223199. The next prime is 21100211223227. The reversal of 21100211223202 is 20232211200112.

It is a self number, because there is not a number n which added to its sum of digits gives 21100211223202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7257924 + ... + 9740527.

It is an arithmetic number, because the mean of its divisors is an integer number (2042058035664).

Almost surely, 2^{21100211223202} is an apocalyptic number.

21100211223202 is a deficient number, since it is larger than the sum of its proper divisors (11572717347422).

21100211223202 is a wasteful number, since it uses less digits than its factorization.

21100211223202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17018505.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 21100211223202 its reverse (20232211200112), we get a palindrome (41332422423314).

The spelling of 21100211223202 in words is "twenty-one trillion, one hundred billion, two hundred eleven million, two hundred twenty-three thousand, two hundred two".