221440134564042 has 16 divisors (see below), whose sum is σ = 447265222288992. Its totient is φ = 73082552661200.

The previous prime is 221440134564029. The next prime is 221440134564073. The reversal of 221440134564042 is 240465431044122.

It is a junction number, because it is equal to n+sod(n) for n = 221440134563985 and 221440134564003.

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, 182706381048 + ... + 182706382259.

It is an arithmetic number, because the mean of its divisors is an integer number (27954076393062).

Almost surely, 2^{221440134564042} is an apocalyptic number.

221440134564042 is an abundant number, since it is smaller than the sum of its proper divisors (225825087724950).

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

221440134564042 is a wasteful number, since it uses less digits than its factorization.

221440134564042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365412763413.

The product of its (nonzero) digits is 737280, while the sum is 42.

The spelling of 221440134564042 in words is "two hundred twenty-one trillion, four hundred forty billion, one hundred thirty-four million, five hundred sixty-four thousand, forty-two".