1001202021122 has 8 divisors (see below), whose sum is σ = 1502064277500. Its totient is φ = 500513928624.

The previous prime is 1001202021103. The next prime is 1001202021133. The reversal of 1001202021122 is 2211202021001.

It can be written as a sum of positive squares in 2 ways, for example, as 731331122041 + 269870899081 = 855179^2 + 519491^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1001202021097 and 1001202021106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43526597 + ... + 43549592.

Almost surely, 2^{1001202021122} is an apocalyptic number.

1001202021122 is a deficient number, since it is larger than the sum of its proper divisors (500862256378).

1001202021122 is an equidigital number, since it uses as much as digits as its factorization.

1001202021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87081940.

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

Adding to 1001202021122 its reverse (2211202021001), we get a palindrome (3212404042123).

The spelling of 1001202021122 in words is "one trillion, one billion, two hundred two million, twenty-one thousand, one hundred twenty-two".