1220123312102 has 32 divisors (see below), whose sum is σ = 1860095820000. Its totient is φ = 600136501248.

The previous prime is 1220123312081. The next prime is 1220123312117. The reversal of 1220123312102 is 2012133210221.

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 15 ways as a sum of consecutive naturals, for example, 152187998 + ... + 152196014.

It is an arithmetic number, because the mean of its divisors is an integer number (58127994375).

Almost surely, 2^{1220123312102} is an apocalyptic number.

1220123312102 is a deficient number, since it is larger than the sum of its proper divisors (639972507898).

1220123312102 is a wasteful number, since it uses less digits than its factorization.

1220123312102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10680.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1220123312102 its reverse (2012133210221), we get a palindrome (3232256522323).

The spelling of 1220123312102 in words is "one trillion, two hundred twenty billion, one hundred twenty-three million, three hundred twelve thousand, one hundred two".