213122424212331 has 32 divisors (see below), whose sum is σ = 290027200034880. Its totient is φ = 139159103975424.

The previous prime is 213122424212267. The next prime is 213122424212393. The reversal of 213122424212331 is 133212424221312.

It is not a de Polignac number, because 213122424212331 - 2⁶ = 213122424212267 is a prime.

It is a super-2 number, since 2×213122424212331² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213122424212292 and 213122424212301.

It is not an unprimeable number, because it can be changed into a prime (213122424212231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 264321811 + ... + 265126883.

It is an arithmetic number, because the mean of its divisors is an integer number (9063350001090).

Almost surely, 2^{213122424212331} is an apocalyptic number.

213122424212331 is a deficient number, since it is larger than the sum of its proper divisors (76904775822549).

213122424212331 is a wasteful number, since it uses less digits than its factorization.

213122424212331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808015.

The product of its digits is 27648, while the sum is 33.

Adding to 213122424212331 its reverse (133212424221312), we get a palindrome (346334848433643).

The spelling of 213122424212331 in words is "two hundred thirteen trillion, one hundred twenty-two billion, four hundred twenty-four million, two hundred twelve thousand, three hundred thirty-one".