121220330132 has 12 divisors (see below), whose sum is σ = 231420630336. Its totient is φ = 55100150040.

The previous prime is 121220330123. The next prime is 121220330149. The reversal of 121220330132 is 231033022121.

It is a super-2 number, since 2×121220330132² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1377503708 + ... + 1377503795.

It is an arithmetic number, because the mean of its divisors is an integer number (19285052528).

Almost surely, 2^121220330132 is an apocalyptic number.

It is an amenable number.

121220330132 is a deficient number, since it is larger than the sum of its proper divisors (110200300204).

121220330132 is a wasteful number, since it uses less digits than its factorization.

121220330132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2755007518 (or 2755007516 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 121220330132 its reverse (231033022121), we get a palindrome (352253352253).

The spelling of 121220330132 in words is "one hundred twenty-one billion, two hundred twenty million, three hundred thirty thousand, one hundred thirty-two".