10142222 has 4 divisors (see below), whose sum is σ = 15213336. Its totient is φ = 5071110.

The previous prime is 10142221. The next prime is 10142227. The reversal of 10142222 is 22224101.

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

10142222 is a modest number, since divided by 2222 gives 1014 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 10142197 and 10142206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10142221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2535554 + ... + 2535557.

It is an arithmetic number, because the mean of its divisors is an integer number (3803334).

Almost surely, 2^10142222 is an apocalyptic number.

10142222 is a deficient number, since it is larger than the sum of its proper divisors (5071114).

10142222 is an equidigital number, since it uses as much as digits as its factorization.

10142222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5071113.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 10142222 is about 3184.6855417765. The cubic root of 10142222 is about 216.4600249413.

Adding to 10142222 its reverse (22224101), we get a palindrome (32366323).

The spelling of 10142222 in words is "ten million, one hundred forty-two thousand, two hundred twenty-two".