121000124434 has 16 divisors (see below), whose sum is σ = 209482537536. Its totient is φ = 51343758000.

The previous prime is 121000124431. The next prime is 121000124447. The reversal of 121000124434 is 434421000121.

It is a happy number.

It is a super-2 number, since 2×121000124434² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121000124431) 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, 42785052 + ... + 42787879.

It is an arithmetic number, because the mean of its divisors is an integer number (13092658596).

Almost surely, 2^121000124434 is an apocalyptic number.

121000124434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

121000124434 is a deficient number, since it is larger than the sum of its proper divisors (88482413102).

121000124434 is a wasteful number, since it uses less digits than its factorization.

121000124434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85573041.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 121000124434 its reverse (434421000121), we get a palindrome (555421124555).

The spelling of 121000124434 in words is "one hundred twenty-one billion, one hundred twenty-four thousand, four hundred thirty-four".