212021132331 has 8 divisors (see below), whose sum is σ = 282776821200. Its totient is φ = 141306432512.

The previous prime is 212021132303. The next prime is 212021132339. The reversal of 212021132331 is 133231120212.

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 212021132331 - 2⁵ = 212021132299 is a prime.

It is a super-2 number, since 2×212021132331² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212021132298 and 212021132307.

It is not an unprimeable number, because it can be changed into a prime (212021132339) 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, 10235190 + ... + 10255883.

It is an arithmetic number, because the mean of its divisors is an integer number (35347102650).

Almost surely, 2^212021132331 is an apocalyptic number.

212021132331 is a deficient number, since it is larger than the sum of its proper divisors (70755688869).

212021132331 is a wasteful number, since it uses less digits than its factorization.

212021132331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20494525.

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

Adding to 212021132331 its reverse (133231120212), we get a palindrome (345252252543).

The spelling of 212021132331 in words is "two hundred twelve billion, twenty-one million, one hundred thirty-two thousand, three hundred thirty-one".