21222122200102 has 8 divisors (see below), whose sum is σ = 31833203098536. Its totient is φ = 10611054500592.

The previous prime is 21222122200079. The next prime is 21222122200127. The reversal of 21222122200102 is 20100222122212.

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

It is a self number, because there is not a number n which added to its sum of digits gives 21222122200102.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 3633453 + ... + 7459639.

It is an arithmetic number, because the mean of its divisors is an integer number (3979150387317).

Almost surely, 2^{21222122200102} is an apocalyptic number.

21222122200102 is a deficient number, since it is larger than the sum of its proper divisors (10611080898434).

21222122200102 is a wasteful number, since it uses less digits than its factorization.

21222122200102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6599462.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 21222122200102 its reverse (20100222122212), we get a palindrome (41322344322314).

The spelling of 21222122200102 in words is "twenty-one trillion, two hundred twenty-two billion, one hundred twenty-two million, two hundred thousand, one hundred two".