121211002002 has 16 divisors (see below), whose sum is σ = 242425779552. Its totient is φ = 40403038080.

The previous prime is 121211001991. The next prime is 121211002051. The reversal of 121211002002 is 200200112121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 426978 + ... + 651714.

It is an arithmetic number, because the mean of its divisors is an integer number (15151611222).

Almost surely, 2^121211002002 is an apocalyptic number.

121211002002 is an abundant number, since it is smaller than the sum of its proper divisors (121214777550).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121211002002 is a wasteful number, since it uses less digits than its factorization.

121211002002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314633.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 121211002002 its reverse (200200112121), we get a palindrome (321411114123).

The spelling of 121211002002 in words is "one hundred twenty-one billion, two hundred eleven million, two thousand, two".