10212342021 has 12 divisors (see below), whose sum is σ = 16858469472. Its totient is φ = 5835623976.

The previous prime is 10212342001. The next prime is 10212342029. The reversal of 10212342021 is 12024321201.

It is a happy number.

10212342021 is a `hidden beast` number, since 10 + 212 + 3 + 420 + 21 = 666.

It is not a de Polignac number, because 10212342021 - 2²⁷ = 10078124293 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10212341985 and 10212342003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212342029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81050271 + ... + 81050396.

It is an arithmetic number, because the mean of its divisors is an integer number (1404872456).

Almost surely, 2^10212342021 is an apocalyptic number.

It is an amenable number.

10212342021 is a deficient number, since it is larger than the sum of its proper divisors (6646127451).

10212342021 is a wasteful number, since it uses less digits than its factorization.

10212342021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162100680 (or 162100677 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 10212342021 its reverse (12024321201), we get a palindrome (22236663222).

The spelling of 10212342021 in words is "ten billion, two hundred twelve million, three hundred forty-two thousand, twenty-one".