221211202112122 has 16 divisors (see below), whose sum is σ = 335491755762240. Its totient is φ = 109382345843328.

The previous prime is 221211202112111. The next prime is 221211202112143.

221211202112122 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 221211202112093 and 221211202112102.

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, 431989728 + ... + 432501499.

It is an arithmetic number, because the mean of its divisors is an integer number (20968234735140).

Almost surely, 2^{221211202112122} is an apocalyptic number.

221211202112122 is a deficient number, since it is larger than the sum of its proper divisors (114280553650118).

221211202112122 is a wasteful number, since it uses less digits than its factorization.

221211202112122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864492645.

The product of its (nonzero) digits is 256, while the sum is 22.

It can be divided in two parts, 22121120 and 2112122, that added together give a palindrome (24233242).

The spelling of 221211202112122 in words is "two hundred twenty-one trillion, two hundred eleven billion, two hundred two million, one hundred twelve thousand, one hundred twenty-two".