21150622221702 has 8 divisors (see below), whose sum is σ = 42301244443416. Its totient is φ = 7050207407232.

The previous prime is 21150622221679. The next prime is 21150622221719. The reversal of 21150622221702 is 20712222605112.

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

21150622221702 is an admirable number.

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, 1762551851803 + ... + 1762551851814.

It is an arithmetic number, because the mean of its divisors is an integer number (5287655555427).

Almost surely, 2^{21150622221702} is an apocalyptic number.

21150622221702 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21150622221702 is a wasteful number, since it uses less digits than its factorization.

21150622221702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3525103703622.

The product of its (nonzero) digits is 13440, while the sum is 33.

Adding to 21150622221702 its reverse (20712222605112), we get a palindrome (41862844826814).

The spelling of 21150622221702 in words is "twenty-one trillion, one hundred fifty billion, six hundred twenty-two million, two hundred twenty-one thousand, seven hundred two".