212230021103431 has 4 divisors (see below), whose sum is σ = 212322819540832. Its totient is φ = 212137222666032.

The previous prime is 212230021103377. The next prime is 212230021103467. The reversal of 212230021103431 is 134301120032212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212230021103431 - 2²⁷ = 212229886885703 is a prime.

It is a super-2 number, since 2×212230021103431² (a number of 29 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 = 212230021103396 and 212230021103405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212230021173431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46399215270 + ... + 46399219843.

It is an arithmetic number, because the mean of its divisors is an integer number (53080704885208).

Almost surely, 2^{212230021103431} is an apocalyptic number.

212230021103431 is a deficient number, since it is larger than the sum of its proper divisors (92798437401).

212230021103431 is an equidigital number, since it uses as much as digits as its factorization.

212230021103431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92798437400.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 212230021103431 its reverse (134301120032212), we get a palindrome (346531141135643).

The spelling of 212230021103431 in words is "two hundred twelve trillion, two hundred thirty billion, twenty-one million, one hundred three thousand, four hundred thirty-one".