221500535214 has 96 divisors (see below), whose sum is σ = 543039638400. Its totient is φ = 59889896640.

The previous prime is 221500535213. The next prime is 221500535273. The reversal of 221500535214 is 412535005122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221500535213) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5235357 + ... + 5277495.

It is an arithmetic number, because the mean of its divisors is an integer number (5656662900).

Almost surely, 2^221500535214 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 221500535214, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271519819200).

221500535214 is an abundant number, since it is smaller than the sum of its proper divisors (321539103186).

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

221500535214 is a wasteful number, since it uses less digits than its factorization.

221500535214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43118 (or 43111 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 221500535214 in words is "two hundred twenty-one billion, five hundred million, five hundred thirty-five thousand, two hundred fourteen".