121322001012 has 24 divisors (see below), whose sum is σ = 289668034656. Its totient is φ = 39500186208.

The previous prime is 121322000999. The next prime is 121322001013. The reversal of 121322001012 is 210100223121.

It is a junction number, because it is equal to n+sod(n) for n = 121322000982 and 121322001000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121322001013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117559563 + ... + 117560594.

It is an arithmetic number, because the mean of its divisors is an integer number (12069501444).

Almost surely, 2^121322001012 is an apocalyptic number.

121322001012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121322001012 is an abundant number, since it is smaller than the sum of its proper divisors (168346033644).

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

121322001012 is a wasteful number, since it uses less digits than its factorization.

121322001012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235120207 (or 235120205 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 121322001012 its reverse (210100223121), we get a palindrome (331422224133).

The spelling of 121322001012 in words is "one hundred twenty-one billion, three hundred twenty-two million, one thousand, twelve".