21106450322 has 8 divisors (see below), whose sum is σ = 31669637772. Its totient is φ = 10549904400.

The previous prime is 21106450307. The next prime is 21106450327. The reversal of 21106450322 is 22305460112.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20147247481 + 959202841 = 141941^2 + 30971^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 21106450291 and 21106450300.

It is not an unprimeable number, because it can be changed into a prime (21106450327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1652429 + ... + 1665152.

Almost surely, 2^21106450322 is an apocalyptic number.

21106450322 is a deficient number, since it is larger than the sum of its proper divisors (10563187450).

21106450322 is a wasteful number, since it uses less digits than its factorization.

21106450322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3320764.

The product of its (nonzero) digits is 2880, while the sum is 26.

The spelling of 21106450322 in words is "twenty-one billion, one hundred six million, four hundred fifty thousand, three hundred twenty-two".