121213140002 has 16 divisors (see below), whose sum is σ = 192535363800. Its totient is φ = 57035440128.

The previous prime is 121213140001. The next prime is 121213140023. The reversal of 121213140002 is 200041312121.

It can be written as a sum of positive squares in 4 ways, for example, as 74971368481 + 46241771521 = 273809^2 + 215039^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (121213140001) by changing a digit.

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, 145874 + ... + 513522.

Almost surely, 2^121213140002 is an apocalyptic number.

121213140002 is a deficient number, since it is larger than the sum of its proper divisors (71322223798).

121213140002 is a wasteful number, since it uses less digits than its factorization.

121213140002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377365.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 121213140002 its reverse (200041312121), we get a palindrome (321254452123).

The spelling of 121213140002 in words is "one hundred twenty-one billion, two hundred thirteen million, one hundred forty thousand, two".