1220112012102 has 16 divisors (see below), whose sum is σ = 2440304888880. Its totient is φ = 406690526592.

The previous prime is 1220112012079. The next prime is 1220112012179. The reversal of 1220112012102 is 2012102110221.

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, 3172327 + ... + 3536082.

It is an arithmetic number, because the mean of its divisors is an integer number (152519055555).

Almost surely, 2^{1220112012102} is an apocalyptic number.

1220112012102 is an abundant number, since it is smaller than the sum of its proper divisors (1220192876778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1220112012102 is a wasteful number, since it uses less digits than its factorization.

1220112012102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6738727.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1220112012102 its reverse (2012102110221), we get a palindrome (3232214122323).

The spelling of 1220112012102 in words is "one trillion, two hundred twenty billion, one hundred twelve million, twelve thousand, one hundred two".