21225463142202 has 120 divisors (see below), whose sum is σ = 54550466818848. Its totient is φ = 6152308026480.

The previous prime is 21225463142141. The next prime is 21225463142269. The reversal of 21225463142202 is 20224136452212.

21225463142202 is a `hidden beast` number, since 2 + 1 + 2 + 254 + 63 + 142 + 202 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 23088748 + ... + 23990439.

Almost surely, 2^{21225463142202} is an apocalyptic number.

21225463142202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21225463142202 is an abundant number, since it is smaller than the sum of its proper divisors (33325003676646).

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

21225463142202 is a wasteful number, since it uses less digits than its factorization.

21225463142202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47079246 (or 47079226 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 36.

Adding to 21225463142202 its reverse (20224136452212), we get a palindrome (41449599594414).

The spelling of 21225463142202 in words is "twenty-one trillion, two hundred twenty-five billion, four hundred sixty-three million, one hundred forty-two thousand, two hundred two".