221012514430 has 8 divisors (see below), whose sum is σ = 397822525992. Its totient is φ = 88405005768.

The previous prime is 221012514427. The next prime is 221012514433. The reversal of 221012514430 is 34415210122.

It is an interprime number because it is at equal distance from previous prime (221012514427) and next prime (221012514433).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 221012514395 and 221012514404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221012514433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11050625712 + ... + 11050625731.

It is an arithmetic number, because the mean of its divisors is an integer number (49727815749).

Almost surely, 2^221012514430 is an apocalyptic number.

221012514430 is a deficient number, since it is larger than the sum of its proper divisors (176810011562).

221012514430 is a wasteful number, since it uses less digits than its factorization.

221012514430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22101251450.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 221012514430 its reverse (34415210122), we get a palindrome (255427724552).

The spelling of 221012514430 in words is "two hundred twenty-one billion, twelve million, five hundred fourteen thousand, four hundred thirty".