12002121111002 has 12 divisors (see below), whose sum is σ = 19788621171018. Its totient is φ = 5455509595800.

The previous prime is 12002121110983. The next prime is 12002121111049. The reversal of 12002121111002 is 20011112120021.

It can be written as a sum of positive squares in only one way, i.e., 10861776909841 + 1140344201161 = 3295721^2 + 1067869^2 .

It is a super-2 number, since 2×12002121111002² (a number of 27 digits) contains 22 as substring.

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, 24797770649 + ... + 24797771132.

Almost surely, 2^{12002121111002} is an apocalyptic number.

12002121111002 is a deficient number, since it is larger than the sum of its proper divisors (7786500060016).

12002121111002 is a wasteful number, since it uses less digits than its factorization.

12002121111002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49595541805 (or 49595541794 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12002121111002 its reverse (20011112120021), we get a palindrome (32013233231023).

The spelling of 12002121111002 in words is "twelve trillion, two billion, one hundred twenty-one million, one hundred eleven thousand, two".