221932480746 has 8 divisors (see below), whose sum is σ = 443864961504. Its totient is φ = 73977493580.

The previous prime is 221932480691. The next prime is 221932480747. The reversal of 221932480746 is 647084239122.

221932480746 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

221932480746 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 221932480695 and 221932480704.

It is not an unprimeable number, because it can be changed into a prime (221932480747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18494373390 + ... + 18494373401.

It is an arithmetic number, because the mean of its divisors is an integer number (55483120188).

Almost surely, 2^221932480746 is an apocalyptic number.

221932480746 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

221932480746 is a wasteful number, since it uses less digits than its factorization.

221932480746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36988746796.

The product of its (nonzero) digits is 1161216, while the sum is 48.

The spelling of 221932480746 in words is "two hundred twenty-one billion, nine hundred thirty-two million, four hundred eighty thousand, seven hundred forty-six".