2126234221045 has 24 divisors (see below), whose sum is σ = 2872923482520. Its totient is φ = 1508636236800.

The previous prime is 2126234221043. The next prime is 2126234221051. The reversal of 2126234221045 is 5401224326212.

It can be written as a sum of positive squares in 4 ways, for example, as 47121121476 + 2079113099569 = 217074^2 + 1441913^2 .

It is not a de Polignac number, because 2126234221045 - 2¹ = 2126234221043 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2126234221045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2126234221043) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42834180 + ... + 42883789.

It is an arithmetic number, because the mean of its divisors is an integer number (119705145105).

Almost surely, 2^{2126234221045} is an apocalyptic number.

It is an amenable number.

2126234221045 is a deficient number, since it is larger than the sum of its proper divisors (746689261475).

2126234221045 is a wasteful number, since it uses less digits than its factorization.

2126234221045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85718037 (or 85718026 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

Adding to 2126234221045 its reverse (5401224326212), we get a palindrome (7527458547257).

The spelling of 2126234221045 in words is "two trillion, one hundred twenty-six billion, two hundred thirty-four million, two hundred twenty-one thousand, forty-five".