221121210002012 has 12 divisors (see below), whose sum is σ = 387242321798136. Its totient is φ = 110480546631120.

The previous prime is 221121210002009. The next prime is 221121210002101. The reversal of 221121210002012 is 210200012121122.

221121210002012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 20014586258 + ... + 20014597305.

It is an arithmetic number, because the mean of its divisors is an integer number (32270193483178).

Almost surely, 2^{221121210002012} is an apocalyptic number.

It is an amenable number.

221121210002012 is a deficient number, since it is larger than the sum of its proper divisors (166121111796124).

221121210002012 is a wasteful number, since it uses less digits than its factorization.

221121210002012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40029184948 (or 40029184946 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 221121210002012 its reverse (210200012121122), we get a palindrome (431321222123134).

The spelling of 221121210002012 in words is "two hundred twenty-one trillion, one hundred twenty-one billion, two hundred ten million, two thousand, twelve".