221429224654 has 64 divisors (see below), whose sum is σ = 376632115200. Its totient is φ = 96776920800.

The previous prime is 221429224651. The next prime is 221429224669. The reversal of 221429224654 is 456422924122.

It is a self number, because there is not a number n which added to its sum of digits gives 221429224654.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221429224651) 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, 11694607 + ... + 11713525.

It is an arithmetic number, because the mean of its divisors is an integer number (5884876800).

Almost surely, 2^221429224654 is an apocalyptic number.

221429224654 is a deficient number, since it is larger than the sum of its proper divisors (155202890546).

221429224654 is a wasteful number, since it uses less digits than its factorization.

221429224654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19189.

The product of its digits is 552960, while the sum is 43.

The spelling of 221429224654 in words is "two hundred twenty-one billion, four hundred twenty-nine million, two hundred twenty-four thousand, six hundred fifty-four".