10212142231 has 4 divisors (see below), whose sum is σ = 10279772464. Its totient is φ = 10144512000.

The previous prime is 10212142229. The next prime is 10212142243. The reversal of 10212142231 is 13224121201.

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 10212142231 - 2¹ = 10212142229 is a prime.

It is a super-2 number, since 2×10212142231² (a number of 21 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 = 10212142199 and 10212142208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212142201) 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, 33814890 + ... + 33815191.

It is an arithmetic number, because the mean of its divisors is an integer number (2569943116).

Almost surely, 2^10212142231 is an apocalyptic number.

10212142231 is a deficient number, since it is larger than the sum of its proper divisors (67630233).

10212142231 is an equidigital number, since it uses as much as digits as its factorization.

10212142231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67630232.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 10212142231 its reverse (13224121201), we get a palindrome (23436263432).

The spelling of 10212142231 in words is "ten billion, two hundred twelve million, one hundred forty-two thousand, two hundred thirty-one".