121250011330 has 64 divisors (see below), whose sum is σ = 255630090240. Its totient is φ = 40550537664.

The previous prime is 121250011301. The next prime is 121250011331. The reversal of 121250011330 is 33110052121.

It is a junction number, because it is equal to n+sod(n) for n = 121250011298 and 121250011307.

It is not an unprimeable number, because it can be changed into a prime (121250011331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 326907 + ... + 591073.

It is an arithmetic number, because the mean of its divisors is an integer number (3994220160).

Almost surely, 2^121250011330 is an apocalyptic number.

121250011330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121250011330 is an abundant number, since it is smaller than the sum of its proper divisors (134380078910).

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

121250011330 is a wasteful number, since it uses less digits than its factorization.

121250011330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264343.

The product of its (nonzero) digits is 180, while the sum is 19.

Adding to 121250011330 its reverse (33110052121), we get a palindrome (154360063451).

It can be divided in two parts, 1212500 and 11330, that added together give a triangular number (1223830 = T₁₅₆₄).

The spelling of 121250011330 in words is "one hundred twenty-one billion, two hundred fifty million, eleven thousand, three hundred thirty".