121224044141 has 4 divisors (see below), whose sum is σ = 121487003484. Its totient is φ = 120961084800.

The previous prime is 121224044111. The next prime is 121224044167. The reversal of 121224044141 is 141440422121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 94835666116 + 26388378025 = 307954^2 + 162445^2 .

It is a cyclic number.

It is not a de Polignac number, because 121224044141 - 2⁶ = 121224044077 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121224044141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121224044111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131478980 + ... + 131479901.

It is an arithmetic number, because the mean of its divisors is an integer number (30371750871).

Almost surely, 2^121224044141 is an apocalyptic number.

It is an amenable number.

121224044141 is a deficient number, since it is larger than the sum of its proper divisors (262959343).

121224044141 is an equidigital number, since it uses as much as digits as its factorization.

121224044141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262959342.

The product of its (nonzero) digits is 2048, while the sum is 26.

Adding to 121224044141 its reverse (141440422121), we get a palindrome (262664466262).

The spelling of 121224044141 in words is "one hundred twenty-one billion, two hundred twenty-four million, forty-four thousand, one hundred forty-one".