121424111250 has 160 divisors (see below), whose sum is σ = 331418812032. Its totient is φ = 29467200000.

The previous prime is 121424111201. The next prime is 121424111351. The reversal of 121424111250 is 52111424121.

It is a self number, because there is not a number n which added to its sum of digits gives 121424111250.

It is an unprimeable number.

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 79 ways as a sum of consecutive naturals, for example, 3443710 + ... + 3478790.

Almost surely, 2^121424111250 is an apocalyptic number.

121424111250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 121424111250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165709406016).

121424111250 is an abundant number, since it is smaller than the sum of its proper divisors (209994700782).

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

121424111250 is a wasteful number, since it uses less digits than its factorization.

121424111250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35190 (or 35175 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 24.

Adding to 121424111250 its reverse (52111424121), we get a palindrome (173535535371).

The spelling of 121424111250 in words is "one hundred twenty-one billion, four hundred twenty-four million, one hundred eleven thousand, two hundred fifty".