42521201252226 has 16 divisors (see below), whose sum is σ = 94491558338400. Its totient is φ = 14173733750724.

The previous prime is 42521201252149. The next prime is 42521201252267. The reversal of 42521201252226 is 62225210212524.

42521201252226 is a `hidden beast` number, since 4 + 2 + 5 + 2 + 120 + 1 + 2 + 522 + 2 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 393714826356 + ... + 393714826463.

It is an arithmetic number, because the mean of its divisors is an integer number (5905722396150).

Almost surely, 2^{42521201252226} is an apocalyptic number.

42521201252226 is an abundant number, since it is smaller than the sum of its proper divisors (51970357086174).

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

42521201252226 is a wasteful number, since it uses less digits than its factorization.

42521201252226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 787429652830 (or 787429652824 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

The spelling of 42521201252226 in words is "forty-two trillion, five hundred twenty-one billion, two hundred one million, two hundred fifty-two thousand, two hundred twenty-six".