2123202254240 has 96 divisors (see below), whose sum is σ = 5061647855376. Its totient is φ = 841566781440.

The previous prime is 2123202254221. The next prime is 2123202254281. The reversal of 2123202254240 is 424522023212.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 293881083664 + 1829321170576 = 542108^2 + 1352524^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94601420 + ... + 94623860.

Almost surely, 2^{2123202254240} is an apocalyptic number.

2123202254240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2123202254240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2530823927688).

2123202254240 is an abundant number, since it is smaller than the sum of its proper divisors (2938445601136).

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

2123202254240 is a wasteful number, since it uses less digits than its factorization.

2123202254240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27802 (or 27794 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 29.

Adding to 2123202254240 its reverse (424522023212), we get a palindrome (2547724277452).

The spelling of 2123202254240 in words is "two trillion, one hundred twenty-three billion, two hundred two million, two hundred fifty-four thousand, two hundred forty".