121255013242002 has 64 divisors (see below), whose sum is σ = 248594639155200. Its totient is φ = 39410827991040.

The previous prime is 121255013242001. The next prime is 121255013242091. The reversal of 121255013242002 is 200242310552121.

It is not an unprimeable number, because it can be changed into a prime (121255013242001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 131057899 + ... + 131979857.

It is an arithmetic number, because the mean of its divisors is an integer number (3884291236800).

Almost surely, 2^{121255013242002} is an apocalyptic number.

121255013242002 is an abundant number, since it is smaller than the sum of its proper divisors (127339625913198).

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

121255013242002 is a wasteful number, since it uses less digits than its factorization.

121255013242002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 923751.

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 121255013242002 its reverse (200242310552121), we get a palindrome (321497323794123).

The spelling of 121255013242002 in words is "one hundred twenty-one trillion, two hundred fifty-five billion, thirteen million, two hundred forty-two thousand, two".