221452152424 has 32 divisors (see below), whose sum is σ = 416614104000. Its totient is φ = 110355384832.

The previous prime is 221452152377. The next prime is 221452152479. The reversal of 221452152424 is 424251254122.

It is a self number, because there is not a number n which added to its sum of digits gives 221452152424.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5738907 + ... + 5777365.

It is an arithmetic number, because the mean of its divisors is an integer number (13019190750).

Almost surely, 2^221452152424 is an apocalyptic number.

It is an amenable number.

221452152424 is a deficient number, since it is larger than the sum of its proper divisors (195161951576).

221452152424 is a wasteful number, since it uses less digits than its factorization.

221452152424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40857 (or 40853 counting only the distinct ones).

The product of its digits is 51200, while the sum is 34.

The spelling of 221452152424 in words is "two hundred twenty-one billion, four hundred fifty-two million, one hundred fifty-two thousand, four hundred twenty-four".