121211120002 has 16 divisors (see below), whose sum is σ = 207811745280. Its totient is φ = 51942309408.

The previous prime is 121211119961. The next prime is 121211120039. The reversal of 121211120002 is 200021112121.

It is a super-2 number, since 2×121211120002² (a number of 23 digits) contains 22 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 7 ways as a sum of consecutive naturals, for example, 299427 + ... + 576262.

It is an arithmetic number, because the mean of its divisors is an integer number (12988234080).

Almost surely, 2^121211120002 is an apocalyptic number.

121211120002 is a deficient number, since it is larger than the sum of its proper divisors (86600625278).

121211120002 is an equidigital number, since it uses as much as digits as its factorization.

121211120002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885585.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 121211120002 its reverse (200021112121), we get a palindrome (321232232123).

The spelling of 121211120002 in words is "one hundred twenty-one billion, two hundred eleven million, one hundred twenty thousand, two".