121221331330132 has 12 divisors (see below), whose sum is σ = 231422541630336. Its totient is φ = 55100605150040.

The previous prime is 121221331330109. The next prime is 121221331330153. The reversal of 121221331330132 is 231033133122121.

It is a super-2 number, since 2×121221331330132² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121221331330132.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1377515128708 + ... + 1377515128795.

It is an arithmetic number, because the mean of its divisors is an integer number (19285211802528).

Almost surely, 2^{121221331330132} is an apocalyptic number.

It is an amenable number.

121221331330132 is a deficient number, since it is larger than the sum of its proper divisors (110201210300204).

121221331330132 is a wasteful number, since it uses less digits than its factorization.

121221331330132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2755030257518 (or 2755030257516 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

Adding to 121221331330132 its reverse (231033133122121), we get a palindrome (352254464452253).

The spelling of 121221331330132 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, three hundred thirty-one million, three hundred thirty thousand, one hundred thirty-two".