2150522140221 has 96 divisors (see below), whose sum is σ = 3846084802560. Its totient is φ = 1127555759232.

The previous prime is 2150522140187. The next prime is 2150522140223. The reversal of 2150522140221 is 1220412250512.

2150522140221 is a `hidden beast` number, since 2 + 15 + 0 + 5 + 221 + 402 + 21 = 666.

It is not a de Polignac number, because 2150522140221 - 2⁹ = 2150522139709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2150522140223) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 100579710 + ... + 100601088.

It is an arithmetic number, because the mean of its divisors is an integer number (40063383360).

Almost surely, 2^{2150522140221} is an apocalyptic number.

2150522140221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2150522140221 is a deficient number, since it is larger than the sum of its proper divisors (1695562662339).

2150522140221 is a wasteful number, since it uses less digits than its factorization.

2150522140221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22135 (or 22132 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

Adding to 2150522140221 its reverse (1220412250512), we get a palindrome (3370934390733).

The spelling of 2150522140221 in words is "two trillion, one hundred fifty billion, five hundred twenty-two million, one hundred forty thousand, two hundred twenty-one".