2122234415540 has 24 divisors (see below), whose sum is σ = 4462487743560. Its totient is φ = 847789867008.

The previous prime is 2122234415491. The next prime is 2122234415593. The reversal of 2122234415540 is 455144322212.

It can be written as a sum of positive squares in 4 ways, for example, as 420832448656 + 1701401966884 = 648716^2 + 1304378^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2122234415540.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68977937 + ... + 69008696.

It is an arithmetic number, because the mean of its divisors is an integer number (185936989315).

Almost surely, 2^{2122234415540} is an apocalyptic number.

2122234415540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2122234415540 is an abundant number, since it is smaller than the sum of its proper divisors (2340253328020).

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

2122234415540 is a wasteful number, since it uses less digits than its factorization.

2122234415540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137987411 (or 137987409 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 35.

Adding to 2122234415540 its reverse (455144322212), we get a palindrome (2577378737752).

The spelling of 2122234415540 in words is "two trillion, one hundred twenty-two billion, two hundred thirty-four million, four hundred fifteen thousand, five hundred forty".