221572250229 has 32 divisors (see below), whose sum is σ = 323009990784. Its totient is φ = 133985223680.

The previous prime is 221572250227. The next prime is 221572250269. The reversal of 221572250229 is 922052275122.

It is not a de Polignac number, because 221572250229 - 2¹ = 221572250227 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221572250227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53608447 + ... + 53612579.

It is an arithmetic number, because the mean of its divisors is an integer number (10094062212).

Almost surely, 2^221572250229 is an apocalyptic number.

It is an amenable number.

221572250229 is a deficient number, since it is larger than the sum of its proper divisors (101437740555).

221572250229 is a wasteful number, since it uses less digits than its factorization.

221572250229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7397.

The product of its (nonzero) digits is 100800, while the sum is 39.

The spelling of 221572250229 in words is "two hundred twenty-one billion, five hundred seventy-two million, two hundred fifty thousand, two hundred twenty-nine".