221711872814376 has 32 divisors (see below), whose sum is σ = 633462493755840. Its totient is φ = 63346249375488.

The previous prime is 221711872814321. The next prime is 221711872814437. The reversal of 221711872814376 is 673418278117122.

221711872814376 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

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, 659856764161 + ... + 659856764496.

It is an arithmetic number, because the mean of its divisors is an integer number (19795702929870).

Almost surely, 2^{221711872814376} is an apocalyptic number.

It is an amenable number.

221711872814376 is an abundant number, since it is smaller than the sum of its proper divisors (411750620941464).

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

221711872814376 is a wasteful number, since it uses less digits than its factorization.

221711872814376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1319713528673 (or 1319713528669 counting only the distinct ones).

The product of its digits is 12644352, while the sum is 60.

The spelling of 221711872814376 in words is "two hundred twenty-one trillion, seven hundred eleven billion, eight hundred seventy-two million, eight hundred fourteen thousand, three hundred seventy-six".