2153041221240 has 576 divisors, whose sum is σ = 9147104366400. Its totient is φ = 434516189184.

The previous prime is 2153041221223. The next prime is 2153041221283. The reversal of 2153041221240 is 421221403512.

2153041221240 is a `hidden beast` number, since 2 + 1 + 5 + 3 + 0 + 412 + 2 + 1 + 240 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 5070256 + ... + 5478464.

It is an arithmetic number, because the mean of its divisors is an integer number (15880389525).

Almost surely, 2^{2153041221240} is an apocalyptic number.

2153041221240 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 2153041221240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4573552183200).

2153041221240 is an abundant number, since it is smaller than the sum of its proper divisors (6994063145160).

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

2153041221240 is a wasteful number, since it uses less digits than its factorization.

2153041221240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408276 (or 408262 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 2153041221240 its reverse (421221403512), we get a palindrome (2574262624752).

The spelling of 2153041221240 in words is "two trillion, one hundred fifty-three billion, forty-one million, two hundred twenty-one thousand, two hundred forty".