221150007572 has 24 divisors (see below), whose sum is σ = 430227313152. Its totient is φ = 98776677600.

The previous prime is 221150007571. The next prime is 221150007593. The reversal of 221150007572 is 275700051122.

221150007572 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221150007571) 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, 68593304 + ... + 68596527.

It is an arithmetic number, because the mean of its divisors is an integer number (17926138048).

Almost surely, 2^221150007572 is an apocalyptic number.

It is an amenable number.

221150007572 is a deficient number, since it is larger than the sum of its proper divisors (209077305580).

221150007572 is a wasteful number, since it uses less digits than its factorization.

221150007572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137189879 (or 137189877 counting only the distinct ones).

The product of its (nonzero) digits is 9800, while the sum is 32.

Adding to 221150007572 its reverse (275700051122), we get a palindrome (496850058694).

The spelling of 221150007572 in words is "two hundred twenty-one billion, one hundred fifty million, seven thousand, five hundred seventy-two".