221001414 has 32 divisors (see below), whose sum is σ = 457765344. Its totient is φ = 71086080.

The previous prime is 221001409. The next prime is 221001421. The reversal of 221001414 is 414100122.

221001414 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 221001393 and 221001402.

It is a congruent number.

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, 13702 + ... + 25094.

It is an arithmetic number, because the mean of its divisors is an integer number (14305167).

Almost surely, 2^221001414 is an apocalyptic number.

221001414 is an abundant number, since it is smaller than the sum of its proper divisors (236763930).

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

221001414 is a wasteful number, since it uses less digits than its factorization.

221001414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11512.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 221001414 is about 14866.1163052090. The cubic root of 221001414 is about 604.5956490350.

Adding to 221001414 its reverse (414100122), we get a palindrome (635101536).

The spelling of 221001414 in words is "two hundred twenty-one million, one thousand, four hundred fourteen".