12021302231131 has 8 divisors (see below), whose sum is σ = 12544020866304. Its totient is φ = 11498588039400.

The previous prime is 12021302231129. The next prime is 12021302231143. The reversal of 12021302231131 is 13113220312021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12021302231131 - 2¹ = 12021302231129 is a prime.

It is a super-2 number, since 2×12021302231131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12021302241131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5174250 + ... + 7128496.

It is an arithmetic number, because the mean of its divisors is an integer number (1568002608288).

Almost surely, 2^{12021302231131} is an apocalyptic number.

12021302231131 is a deficient number, since it is larger than the sum of its proper divisors (522718635173).

12021302231131 is a wasteful number, since it uses less digits than its factorization.

12021302231131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2221721.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 12021302231131 its reverse (13113220312021), we get a palindrome (25134522543152).

The spelling of 12021302231131 in words is "twelve trillion, twenty-one billion, three hundred two million, two hundred thirty-one thousand, one hundred thirty-one".