44504212121 has 4 divisors (see below), whose sum is σ = 44529601332. Its totient is φ = 44478822912.

The previous prime is 44504212117. The next prime is 44504212133. The reversal of 44504212121 is 12121240544.

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 2602122121 + 41902090000 = 51011^2 + 204700^2 .

It is a cyclic number.

It is not a de Polignac number, because 44504212121 - 2² = 44504212117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44504212171) 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, 12691976 + ... + 12695481.

It is an arithmetic number, because the mean of its divisors is an integer number (11132400333).

Almost surely, 2^44504212121 is an apocalyptic number.

It is an amenable number.

44504212121 is a deficient number, since it is larger than the sum of its proper divisors (25389211).

44504212121 is a wasteful number, since it uses less digits than its factorization.

44504212121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25389210.

The product of its (nonzero) digits is 2560, while the sum is 26.

Adding to 44504212121 its reverse (12121240544), we get a palindrome (56625452665).

The spelling of 44504212121 in words is "forty-four billion, five hundred four million, two hundred twelve thousand, one hundred twenty-one".