221230454102 has 16 divisors (see below), whose sum is σ = 379280244480. Its totient is φ = 94806042408.

The previous prime is 221230454089. The next prime is 221230454173. The reversal of 221230454102 is 201454032122.

221230454102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 385652 + ... + 768887.

It is an arithmetic number, because the mean of its divisors is an integer number (23705015280).

Almost surely, 2^221230454102 is an apocalyptic number.

221230454102 is a deficient number, since it is larger than the sum of its proper divisors (158049790378).

221230454102 is a wasteful number, since it uses less digits than its factorization.

221230454102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1168235.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 221230454102 its reverse (201454032122), we get a palindrome (422684486224).

The spelling of 221230454102 in words is "two hundred twenty-one billion, two hundred thirty million, four hundred fifty-four thousand, one hundred two".