2231340422521 has 16 divisors (see below), whose sum is σ = 2561373045504. Its totient is φ = 1904127312384.

The previous prime is 2231340422497. The next prime is 2231340422561. The reversal of 2231340422521 is 1252240431322.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2231340422521 - 2¹¹ = 2231340420473 is a prime.

It is a super-3 number, since 3×2231340422521³ (a number of 38 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2231340422561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13410580 + ... + 13575946.

It is an arithmetic number, because the mean of its divisors is an integer number (160085815344).

Almost surely, 2^{2231340422521} is an apocalyptic number.

It is an amenable number.

2231340422521 is a deficient number, since it is larger than the sum of its proper divisors (330032622983).

2231340422521 is a wasteful number, since it uses less digits than its factorization.

2231340422521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173880.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 2231340422521 its reverse (1252240431322), we get a palindrome (3483580853843).

The spelling of 2231340422521 in words is "two trillion, two hundred thirty-one billion, three hundred forty million, four hundred twenty-two thousand, five hundred twenty-one".