10142120122 has 4 divisors (see below), whose sum is σ = 15213180186. Its totient is φ = 5071060060.

The previous prime is 10142120113. The next prime is 10142120141. The reversal of 10142120122 is 22102124101.

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

It can be written as a sum of positive squares in only one way, i.e., 5195670561 + 4946449561 = 72081^2 + 70331^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10142120096 and 10142120105.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2535530029 + ... + 2535530032.

Almost surely, 2^10142120122 is an apocalyptic number.

10142120122 is a deficient number, since it is larger than the sum of its proper divisors (5071060064).

10142120122 is an equidigital number, since it uses as much as digits as its factorization.

10142120122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5071060063.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 10142120122 its reverse (22102124101), we get a palindrome (32244244223).

The spelling of 10142120122 in words is "ten billion, one hundred forty-two million, one hundred twenty thousand, one hundred twenty-two".