42203425378221 has 96 divisors (see below), whose sum is σ = 67217187937536. Its totient is φ = 26369971200000.

The previous prime is 42203425378201. The next prime is 42203425378249. The reversal of 42203425378221 is 12287352430224.

42203425378221 is a `hidden beast` number, since 4 + 2 + 2 + 0 + 34 + 2 + 537 + 82 + 2 + 1 = 666.

It is not a de Polignac number, because 42203425378221 - 2⁶ = 42203425378157 is a prime.

It is a super-2 number, since 2×42203425378221² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42203425378201) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 995553936 + ... + 995596326.

It is an arithmetic number, because the mean of its divisors is an integer number (700179041016).

Almost surely, 2^{42203425378221} is an apocalyptic number.

It is an amenable number.

42203425378221 is a deficient number, since it is larger than the sum of its proper divisors (25013762559315).

42203425378221 is a wasteful number, since it uses less digits than its factorization.

42203425378221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43425 (or 43413 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 45.

The spelling of 42203425378221 in words is "forty-two trillion, two hundred three billion, four hundred twenty-five million, three hundred seventy-eight thousand, two hundred twenty-one".