21603272226250 has 80 divisors (see below), whose sum is σ = 47572399984032. Its totient is φ = 7251447960000.

The previous prime is 21603272226163. The next prime is 21603272226257. The reversal of 21603272226250 is 5262227230612.

It is not an unprimeable number, because it can be changed into a prime (21603272226257) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 60249984 + ... + 60607483.

Almost surely, 2^{21603272226250} is an apocalyptic number.

21603272226250 is an abundant number, since it is smaller than the sum of its proper divisors (25969127757782).

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

21603272226250 is a wasteful number, since it uses less digits than its factorization.

21603272226250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120857513 (or 120857498 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 40.

Adding to 21603272226250 its reverse (5262227230612), we get a palindrome (26865499456862).

The spelling of 21603272226250 in words is "twenty-one trillion, six hundred three billion, two hundred seventy-two million, two hundred twenty-six thousand, two hundred fifty".