250121342121 has 32 divisors (see below), whose sum is σ = 394999750656. Its totient is φ = 137764800000.

The previous prime is 250121342111. The next prime is 250121342129. The reversal of 250121342121 is 121243121052.

It is a happy number.

250121342121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 250121342121 - 2²³ = 250112953513 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 250121342091 and 250121342100.

It is not an unprimeable number, because it can be changed into a prime (250121342129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 601960 + ... + 928761.

It is an arithmetic number, because the mean of its divisors is an integer number (12343742208).

Almost surely, 2^250121342121 is an apocalyptic number.

250121342121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

250121342121 is a deficient number, since it is larger than the sum of its proper divisors (144878408535).

250121342121 is a wasteful number, since it uses less digits than its factorization.

250121342121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1531013.

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 250121342121 its reverse (121243121052), we get a palindrome (371364463173).

The spelling of 250121342121 in words is "two hundred fifty billion, one hundred twenty-one million, three hundred forty-two thousand, one hundred twenty-one".