121001332212 has 72 divisors (see below), whose sum is σ = 320058274536. Its totient is φ = 38503206144.

The previous prime is 121001332187. The next prime is 121001332219. The reversal of 121001332212 is 212233100121.

121001332212 is a `hidden beast` number, since 121 + 0 + 0 + 1 + 332 + 212 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 65656887696 + 55344444516 = 256236^2 + 235254^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121001332219) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 786403 + ... + 927594.

It is an arithmetic number, because the mean of its divisors is an integer number (4445253813).

Almost surely, 2^121001332212 is an apocalyptic number.

121001332212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121001332212 is an abundant number, since it is smaller than the sum of its proper divisors (199056942324).

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

121001332212 is a wasteful number, since it uses less digits than its factorization.

121001332212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1714097 (or 1714092 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 121001332212 its reverse (212233100121), we get a palindrome (333234432333).

The spelling of 121001332212 in words is "one hundred twenty-one billion, one million, three hundred thirty-two thousand, two hundred twelve".