1001000121002 has 12 divisors (see below), whose sum is σ = 1746643068450. Its totient is φ = 429000051816.

The previous prime is 1001000120927. The next prime is 1001000121047. The reversal of 1001000121002 is 2001210001001.

It can be written as a sum of positive squares in only one way, i.e., 830101387801 + 170898733201 = 911099^2 + 413399^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5107143377 + ... + 5107143572.

Almost surely, 2^{1001000121002} is an apocalyptic number.

1001000121002 is a deficient number, since it is larger than the sum of its proper divisors (745642947448).

1001000121002 is a wasteful number, since it uses less digits than its factorization.

1001000121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10214286965 (or 10214286958 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 1001000121002 its reverse (2001210001001), we get a palindrome (3002210122003).

The spelling of 1001000121002 in words is "one trillion, one billion, one hundred twenty-one thousand, two".