2150044321121 has 6 divisors (see below), whose sum is σ = 2226740314422. Its totient is φ = 2075904860960.

The previous prime is 2150044321097. The next prime is 2150044321127. The reversal of 2150044321121 is 1211234400512.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 452336953600 + 1697707367521 = 672560^2 + 1302961^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2150044321121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2150044321127) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1278265700 + ... + 1278267381.

It is an arithmetic number, because the mean of its divisors is an integer number (371123385737).

Almost surely, 2^{2150044321121} is an apocalyptic number.

It is an amenable number.

2150044321121 is a deficient number, since it is larger than the sum of its proper divisors (76695993301).

2150044321121 is an equidigital number, since it uses as much as digits as its factorization.

2150044321121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2556533139 (or 2556533110 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 2150044321121 its reverse (1211234400512), we get a palindrome (3361278721633).

The spelling of 2150044321121 in words is "two trillion, one hundred fifty billion, forty-four million, three hundred twenty-one thousand, one hundred twenty-one".