121044221430 has 64 divisors (see below), whose sum is σ = 327843936000. Its totient is φ = 28332187520.

The previous prime is 121044221413. The next prime is 121044221437. The reversal of 121044221430 is 34122440121.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 121044221430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121044221437) 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, 6314580 + ... + 6333719.

It is an arithmetic number, because the mean of its divisors is an integer number (5122561500).

Almost surely, 2^121044221430 is an apocalyptic number.

121044221430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121044221430 is an abundant number, since it is smaller than the sum of its proper divisors (206799714570).

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

121044221430 is a wasteful number, since it uses less digits than its factorization.

121044221430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12648349.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 121044221430 its reverse (34122440121), we get a palindrome (155166661551).

The spelling of 121044221430 in words is "one hundred twenty-one billion, forty-four million, two hundred twenty-one thousand, four hundred thirty".