221422047307460 has 48 divisors (see below), whose sum is σ = 465110284730112. Its totient is φ = 88545204384000.

The previous prime is 221422047307423. The next prime is 221422047307493. The reversal of 221422047307460 is 64703740224122.

It is a happy number.

221422047307460 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3406303319 + ... + 3406368321.

It is an arithmetic number, because the mean of its divisors is an integer number (9689797598544).

Almost surely, 2^{221422047307460} is an apocalyptic number.

221422047307460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221422047307460 is an abundant number, since it is smaller than the sum of its proper divisors (243688237422652).

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

221422047307460 is a wasteful number, since it uses less digits than its factorization.

221422047307460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107804 (or 107802 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 44.

The spelling of 221422047307460 in words is "two hundred twenty-one trillion, four hundred twenty-two billion, forty-seven million, three hundred seven thousand, four hundred sixty".