121121000007 has 16 divisors (see below), whose sum is σ = 188331974400. Its totient is φ = 69211999416.

The previous prime is 121120999999. The next prime is 121121000089. The reversal of 121121000007 is 700000121121.

It is not a de Polignac number, because 121121000007 - 2³ = 121120999999 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121121000007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121121001007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58852713 + ... + 58854770.

It is an arithmetic number, because the mean of its divisors is an integer number (11770748400).

Almost surely, 2^121121000007 is an apocalyptic number.

121121000007 is a deficient number, since it is larger than the sum of its proper divisors (67210974393).

121121000007 is an equidigital number, since it uses as much as digits as its factorization.

121121000007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117707507 (or 117707493 counting only the distinct ones).

The product of its (nonzero) digits is 28, while the sum is 15.

Adding to 121121000007 its reverse (700000121121), we get a palindrome (821121121128).

The spelling of 121121000007 in words is "one hundred twenty-one billion, one hundred twenty-one million, seven", and thus it is an aban number.