10142212 has 6 divisors (see below), whose sum is σ = 17748878. Its totient is φ = 5071104.

The previous prime is 10142207. The next prime is 10142221. The reversal of 10142212 is 21224101.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 10137856 + 4356 = 3184^2 + 66^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10142192 and 10142201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1267773 + ... + 1267780.

Almost surely, 2^10142212 is an apocalyptic number.

It is an amenable number.

10142212 is a deficient number, since it is larger than the sum of its proper divisors (7606666).

10142212 is a wasteful number, since it uses less digits than its factorization.

10142212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2535557 (or 2535555 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 10142212 is about 3184.6839717623. The cubic root of 10142212 is about 216.4599537997.

Adding to 10142212 its reverse (21224101), we get a palindrome (31366313).

The spelling of 10142212 in words is "ten million, one hundred forty-two thousand, two hundred twelve".