12021230201331 has 16 divisors (see below), whose sum is σ = 17317479221504. Its totient is φ = 7373583438624.

The previous prime is 12021230201327. The next prime is 12021230201339. The reversal of 12021230201331 is 13310203212021.

It is not a de Polignac number, because 12021230201331 - 2² = 12021230201327 is a prime.

It is a super-2 number, since 2×12021230201331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12021230201298 and 12021230201307.

It is not an unprimeable number, because it can be changed into a prime (12021230201339) 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, 502002151 + ... + 502026096.

It is an arithmetic number, because the mean of its divisors is an integer number (1082342451344).

Almost surely, 2^{12021230201331} is an apocalyptic number.

12021230201331 is a deficient number, since it is larger than the sum of its proper divisors (5296249020173).

12021230201331 is a wasteful number, since it uses less digits than its factorization.

12021230201331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004028570.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 12021230201331 its reverse (13310203212021), we get a palindrome (25331433413352).

The spelling of 12021230201331 in words is "twelve trillion, twenty-one billion, two hundred thirty million, two hundred one thousand, three hundred thirty-one".