221925496434 has 16 divisors (see below), whose sum is σ = 467211571680. Its totient is φ = 70081735680.

The previous prime is 221925496433. The next prime is 221925496459. The reversal of 221925496434 is 434694529122.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (221925496433) 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, 973357327 + ... + 973357554.

It is an arithmetic number, because the mean of its divisors is an integer number (29200723230).

Almost surely, 2^221925496434 is an apocalyptic number.

221925496434 is an abundant number, since it is smaller than the sum of its proper divisors (245286075246).

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

221925496434 is a wasteful number, since it uses less digits than its factorization.

221925496434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1946714905.

The product of its digits is 3732480, while the sum is 51.

The spelling of 221925496434 in words is "two hundred twenty-one billion, nine hundred twenty-five million, four hundred ninety-six thousand, four hundred thirty-four".