21000110122246 has 8 divisors (see below), whose sum is σ = 31519767033360. Its totient is φ = 10493521111128.

The previous prime is 21000110122109. The next prime is 21000110122247. The reversal of 21000110122246 is 64222101100012.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21000110122247) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3266970981 + ... + 3266977408.

It is an arithmetic number, because the mean of its divisors is an integer number (3939970879170).

Almost surely, 2^{21000110122246} is an apocalyptic number.

21000110122246 is a deficient number, since it is larger than the sum of its proper divisors (10519656911114).

21000110122246 is a wasteful number, since it uses less digits than its factorization.

21000110122246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6533949998.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 21000110122246 its reverse (64222101100012), we get a palindrome (85222211222258).

The spelling of 21000110122246 in words is "twenty-one trillion, one hundred ten million, one hundred twenty-two thousand, two hundred forty-six".