1002120111002 has 8 divisors (see below), whose sum is σ = 1503479560212. Its totient is φ = 500960257600.

The previous prime is 1002120110989. The next prime is 1002120111043. The reversal of 1002120111002 is 2001110212001.

It can be written as a sum of positive squares in 2 ways, for example, as 1001838844561 + 281266441 = 1000919^2 + 16771^2 .

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

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 in 3 ways as a sum of consecutive naturals, for example, 49886399 + ... + 49906482.

Almost surely, 2^{1002120111002} is an apocalyptic number.

1002120111002 is a deficient number, since it is larger than the sum of its proper divisors (501359449210).

1002120111002 is an equidigital number, since it uses as much as digits as its factorization.

1002120111002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99797904.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1002120111002 its reverse (2001110212001), we get a palindrome (3003230323003).

The spelling of 1002120111002 in words is "one trillion, two billion, one hundred twenty million, one hundred eleven thousand, two".