121213329284 has 12 divisors (see below), whose sum is σ = 212139768204. Its totient is φ = 60601966944.

The previous prime is 121213329283. The next prime is 121213329311. The reversal of 121213329284 is 482923312121.

It can be written as a sum of positive squares in 2 ways, for example, as 47838438400 + 73374890884 = 218720^2 + 270878^2 .

It is a super-2 number, since 2×121213329284² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121213329283) by changing a digit.

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, 1116047 + ... + 1219830.

It is an arithmetic number, because the mean of its divisors is an integer number (17678314017).

Almost surely, 2^121213329284 is an apocalyptic number.

It is an amenable number.

121213329284 is a deficient number, since it is larger than the sum of its proper divisors (90926438920).

121213329284 is a wasteful number, since it uses less digits than its factorization.

121213329284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2348854 (or 2348852 counting only the distinct ones).

The product of its digits is 41472, while the sum is 38.

The spelling of 121213329284 in words is "one hundred twenty-one billion, two hundred thirteen million, three hundred twenty-nine thousand, two hundred eighty-four".