2001120212002 has 8 divisors (see below), whose sum is σ = 3012362455212. Its totient is φ = 996999393600.

The previous prime is 2001120211991. The next prime is 2001120212023. The reversal of 2001120212002 is 2002120211002.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1999596793041 + 1523418961 = 1414071^2 + 39031^2 .

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

It is a super-4 number, since 4×2001120212002⁴ (a number of 50 digits) contains 4444 as substring.

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, 1780355499 + ... + 1780356622.

Almost surely, 2^{2001120212002} is an apocalyptic number.

2001120212002 is a deficient number, since it is larger than the sum of its proper divisors (1011242243210).

2001120212002 is a wasteful number, since it uses less digits than its factorization.

2001120212002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3560712404.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2001120212002 its reverse (2002120211002), we get a palindrome (4003240423004).

It can be divided in two parts, 2001120 and 212002, that added together give a palindrome (2213122).

The spelling of 2001120212002 in words is "two trillion, one billion, one hundred twenty million, two hundred twelve thousand, two".