221056352321054 has 64 divisors (see below), whose sum is σ = 351203633028864. Its totient is φ = 104247916800000.

The previous prime is 221056352321039. The next prime is 221056352321113. The reversal of 221056352321054 is 450123253650122.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67615739 + ... + 70809609.

It is an arithmetic number, because the mean of its divisors is an integer number (5487556766076).

Almost surely, 2^{221056352321054} is an apocalyptic number.

221056352321054 is a deficient number, since it is larger than the sum of its proper divisors (130147280707810).

221056352321054 is a wasteful number, since it uses less digits than its factorization.

221056352321054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3194213.

The product of its (nonzero) digits is 432000, while the sum is 41.

The spelling of 221056352321054 in words is "two hundred twenty-one trillion, fifty-six billion, three hundred fifty-two million, three hundred twenty-one thousand, fifty-four".