220971721514 has 16 divisors (see below), whose sum is σ = 350093530080. Its totient is φ = 104313571920.

The previous prime is 220971721513. The next prime is 220971721541. The reversal of 220971721514 is 415127179022.

It is not an unprimeable number, because it can be changed into a prime (220971721513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9912152 + ... + 9934419.

It is an arithmetic number, because the mean of its divisors is an integer number (21880845630).

Almost surely, 2^220971721514 is an apocalyptic number.

220971721514 is a deficient number, since it is larger than the sum of its proper divisors (129121808566).

220971721514 is a wasteful number, since it uses less digits than its factorization.

220971721514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19846885.

The product of its (nonzero) digits is 70560, while the sum is 41.

The spelling of 220971721514 in words is "two hundred twenty billion, nine hundred seventy-one million, seven hundred twenty-one thousand, five hundred fourteen".