121221220003102 has 16 divisors (see below), whose sum is σ = 182775829098240. Its totient is φ = 60295950047232.

The previous prime is 121221220003061. The next prime is 121221220003109. The reversal of 121221220003102 is 201300022122121.

It is a self number, because there is not a number n which added to its sum of digits gives 121221220003102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121221220003109) 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, 37504774 + ... + 40608502.

It is an arithmetic number, because the mean of its divisors is an integer number (11423489318640).

Almost surely, 2^{121221220003102} is an apocalyptic number.

121221220003102 is a deficient number, since it is larger than the sum of its proper divisors (61554609095138).

121221220003102 is a wasteful number, since it uses less digits than its factorization.

121221220003102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3205107.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 121221220003102 its reverse (201300022122121), we get a palindrome (322521242125223).

The spelling of 121221220003102 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, two hundred twenty million, three thousand, one hundred two".