1001202102122 has 16 divisors (see below), whose sum is σ = 1567338058440. Its totient is φ = 479061606912.

The previous prime is 1001202102091. The next prime is 1001202102133. The reversal of 1001202102122 is 2212012021001.

It can be written as a sum of positive squares in 4 ways, for example, as 361139700601 + 640062401521 = 600949^2 + 800039^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1001202102097 and 1001202102106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76374443 + ... + 76387550.

Almost surely, 2^{1001202102122} is an apocalyptic number.

1001202102122 is a deficient number, since it is larger than the sum of its proper divisors (566135956318).

1001202102122 is a wasteful number, since it uses less digits than its factorization.

1001202102122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152762137.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1001202102122 its reverse (2212012021001), we get a palindrome (3213214123123).

The spelling of 1001202102122 in words is "one trillion, one billion, two hundred two million, one hundred two thousand, one hundred twenty-two".