1002112202122 has 4 divisors (see below), whose sum is σ = 1503168303186. Its totient is φ = 501056101060.

The previous prime is 1002112202111. The next prime is 1002112202131. The reversal of 1002112202122 is 2212022112001.

It is a happy number.

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., 986805811161 + 15306390961 = 993381^2 + 123719^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1002112202096 and 1002112202105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250528050529 + ... + 250528050532.

Almost surely, 2^{1002112202122} is an apocalyptic number.

1002112202122 is a deficient number, since it is larger than the sum of its proper divisors (501056101064).

1002112202122 is an equidigital number, since it uses as much as digits as its factorization.

1002112202122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501056101063.

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

Adding to 1002112202122 its reverse (2212022112001), we get a palindrome (3214134314123).

The spelling of 1002112202122 in words is "one trillion, two billion, one hundred twelve million, two hundred two thousand, one hundred twenty-two".