10212543422 has 4 divisors (see below), whose sum is σ = 15318815136. Its totient is φ = 5106271710.

The previous prime is 10212543413. The next prime is 10212543427. The reversal of 10212543422 is 22434521201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22434521201 = 10723 ⋅2092187.

It is a junction number, because it is equal to n+sod(n) for n = 10212543391 and 10212543400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212543427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2553135854 + ... + 2553135857.

It is an arithmetic number, because the mean of its divisors is an integer number (3829703784).

Almost surely, 2^10212543422 is an apocalyptic number.

10212543422 is a deficient number, since it is larger than the sum of its proper divisors (5106271714).

10212543422 is an equidigital number, since it uses as much as digits as its factorization.

10212543422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5106271713.

The product of its (nonzero) digits is 3840, while the sum is 26.

The spelling of 10212543422 in words is "ten billion, two hundred twelve million, five hundred forty-three thousand, four hundred twenty-two".