72221055502352 has 40 divisors (see below), whose sum is σ = 141238383664896. Its totient is φ = 35772451583616.

The previous prime is 72221055502303. The next prime is 72221055502357. The reversal of 72221055502352 is 25320555012227.

It is not an unprimeable number, because it can be changed into a prime (72221055502357) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113467298 + ... + 114102014.

Almost surely, 2^{72221055502352} is an apocalyptic number.

It is an amenable number.

72221055502352 is a deficient number, since it is larger than the sum of its proper divisors (69017328162544).

72221055502352 is a wasteful number, since it uses less digits than its factorization.

72221055502352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701295 (or 701289 counting only the distinct ones).

The product of its (nonzero) digits is 420000, while the sum is 41.

The spelling of 72221055502352 in words is "seventy-two trillion, two hundred twenty-one billion, fifty-five million, five hundred two thousand, three hundred fifty-two".