221422115077744 has 40 divisors (see below), whose sum is σ = 500297781893600. Its totient is φ = 94895192173824.

The previous prime is 221422115077739. The next prime is 221422115077753. The reversal of 221422115077744 is 447770511224122.

It is a happy number.

221422115077744 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

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, 20173292169 + ... + 20173303144.

It is an arithmetic number, because the mean of its divisors is an integer number (12507444547340).

Almost surely, 2^{221422115077744} is an apocalyptic number.

It is an amenable number.

221422115077744 is an abundant number, since it is smaller than the sum of its proper divisors (278875666815856).

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

221422115077744 is an equidigital number, since it uses as much as digits as its factorization.

221422115077744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40346595342 (or 40346595322 counting only the distinct ones).

The product of its (nonzero) digits is 1756160, while the sum is 49.

The spelling of 221422115077744 in words is "two hundred twenty-one trillion, four hundred twenty-two billion, one hundred fifteen million, seventy-seven thousand, seven hundred forty-four".