2002120121002 has 8 divisors (see below), whose sum is σ = 3005386783812. Its totient is φ = 1000324526400.

The previous prime is 2002120120963. The next prime is 2002120121041. The reversal of 2002120121002 is 2001210212002.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2002120120963) and next prime (2002120121041).

It can be written as a sum of positive squares in 2 ways, for example, as 1996085783241 + 6034337761 = 1412829^2 + 77681^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 367763649 + ... + 367769092.

Almost surely, 2^{2002120121002} is an apocalyptic number.

2002120121002 is a deficient number, since it is larger than the sum of its proper divisors (1003266662810).

2002120121002 is a wasteful number, since it uses less digits than its factorization.

2002120121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735534104.

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

Adding to 2002120121002 its reverse (2001210212002), we get a palindrome (4003330333004).

The spelling of 2002120121002 in words is "two trillion, two billion, one hundred twenty million, one hundred twenty-one thousand, two".