21450204415322 has 32 divisors (see below), whose sum is σ = 33362502944400. Its totient is φ = 10331124901888.

The previous prime is 21450204415319. The next prime is 21450204415511. The reversal of 21450204415322 is 22351440205412.

It can be written as a sum of positive squares in 8 ways, for example, as 2147634561361 + 19302569853961 = 1465481^2 + 4393469^2 .

It is a super-2 number, since 2×21450204415322² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42694208 + ... + 43193700.

Almost surely, 2^{21450204415322} is an apocalyptic number.

21450204415322 is a deficient number, since it is larger than the sum of its proper divisors (11912298529078).

21450204415322 is a wasteful number, since it uses less digits than its factorization.

21450204415322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501250.

The product of its (nonzero) digits is 76800, while the sum is 35.

The spelling of 21450204415322 in words is "twenty-one trillion, four hundred fifty billion, two hundred four million, four hundred fifteen thousand, three hundred twenty-two".