221413430012 has 6 divisors (see below), whose sum is σ = 387473502528. Its totient is φ = 110706715004.

The previous prime is 221413429973. The next prime is 221413430023. The reversal of 221413430012 is 210034314122.

It is a self number, because there is not a number n which added to its sum of digits gives 221413430012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27676678748 + ... + 27676678755.

It is an arithmetic number, because the mean of its divisors is an integer number (64578917088).

Almost surely, 2^221413430012 is an apocalyptic number.

It is an amenable number.

221413430012 is a deficient number, since it is larger than the sum of its proper divisors (166060072516).

221413430012 is a wasteful number, since it uses less digits than its factorization.

221413430012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55353357507 (or 55353357505 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 221413430012 its reverse (210034314122), we get a palindrome (431447744134).

The spelling of 221413430012 in words is "two hundred twenty-one billion, four hundred thirteen million, four hundred thirty thousand, twelve".