12211121011002 has 16 divisors (see below), whose sum is σ = 24731384327040. Its totient is φ = 4018849952832.

The previous prime is 12211121010967. The next prime is 12211121011003. The reversal of 12211121011002 is 20011012111221.

It is a happy number.

It is a super-2 number, since 2×12211121011002² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12211121011003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12880928863 + ... + 12880929810.

It is an arithmetic number, because the mean of its divisors is an integer number (1545711520440).

Almost surely, 2^{12211121011002} is an apocalyptic number.

12211121011002 is an abundant number, since it is smaller than the sum of its proper divisors (12520263316038).

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

12211121011002 is a wasteful number, since it uses less digits than its factorization.

12211121011002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25761858757.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12211121011002 its reverse (20011012111221), we get a palindrome (32222133122223).

The spelling of 12211121011002 in words is "twelve trillion, two hundred eleven billion, one hundred twenty-one million, eleven thousand, two".