780221102210102 has 16 divisors (see below), whose sum is σ = 1337532175796640. Its totient is φ = 334377900802368.

The previous prime is 780221102210057. The next prime is 780221102210107. The reversal of 780221102210102 is 201012201122087.

780221102210102 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 not an unprimeable number, because it can be changed into a prime (780221102210107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212411783 + ... + 216053714.

It is an arithmetic number, because the mean of its divisors is an integer number (83595760987290).

Almost surely, 2^{780221102210102} is an apocalyptic number.

780221102210102 is a deficient number, since it is larger than the sum of its proper divisors (557311073586538).

780221102210102 is a wasteful number, since it uses less digits than its factorization.

780221102210102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428595575.

The product of its (nonzero) digits is 1792, while the sum is 29.

Adding to 780221102210102 its reverse (201012201122087), we get a palindrome (981233303332189).

The spelling of 780221102210102 in words is "seven hundred eighty trillion, two hundred twenty-one billion, one hundred two million, two hundred ten thousand, one hundred two".