21000111112202 has 8 divisors (see below), whose sum is σ = 31879686748896. Its totient is φ = 10373548862572.

The previous prime is 21000111112199. The next prime is 21000111112207. The reversal of 21000111112202 is 20221111100012.

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

It is not an unprimeable number, because it can be changed into a prime (21000111112207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63253346558 + ... + 63253346889.

It is an arithmetic number, because the mean of its divisors is an integer number (3984960843612).

Almost surely, 2^{21000111112202} is an apocalyptic number.

21000111112202 is a deficient number, since it is larger than the sum of its proper divisors (10879575636694).

21000111112202 is a wasteful number, since it uses less digits than its factorization.

21000111112202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126506693532.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 21000111112202 its reverse (20221111100012), we get a palindrome (41221222212214).

The spelling of 21000111112202 in words is "twenty-one trillion, one hundred eleven million, one hundred twelve thousand, two hundred two".