212020332231 has 32 divisors (see below), whose sum is σ = 299606973120. Its totient is φ = 133157606400.

The previous prime is 212020332229. The next prime is 212020332263. The reversal of 212020332231 is 132233020212.

It is a happy number.

It is not a de Polignac number, because 212020332231 - 2¹ = 212020332229 is a prime.

It is a super-2 number, since 2×212020332231² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212020332198 and 212020332207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212020332221) 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, 707571 + ... + 961611.

It is an arithmetic number, because the mean of its divisors is an integer number (9362717910).

Almost surely, 2^212020332231 is an apocalyptic number.

212020332231 is a deficient number, since it is larger than the sum of its proper divisors (87586640889).

212020332231 is a wasteful number, since it uses less digits than its factorization.

212020332231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254307.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 212020332231 its reverse (132233020212), we get a palindrome (344253352443).

The spelling of 212020332231 in words is "two hundred twelve billion, twenty million, three hundred thirty-two thousand, two hundred thirty-one".