221121404121122 has 16 divisors (see below), whose sum is σ = 332859201500160. Its totient is φ = 110168877032592.

The previous prime is 221121404121119. The next prime is 221121404121131.

221121404121122 is nontrivially palindromic in base 10.

221121404121122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 221121404121091 and 221121404121100.

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, 134199968 + ... + 135837675.

It is an arithmetic number, because the mean of its divisors is an integer number (20803700093760).

Almost surely, 2^{221121404121122} is an apocalyptic number.

221121404121122 is a deficient number, since it is larger than the sum of its proper divisors (111737797379038).

221121404121122 is a wasteful number, since it uses less digits than its factorization.

221121404121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270039097.

The product of its (nonzero) digits is 1024, while the sum is 26.

It can be divided in two parts, 22112140 and 4121122, that added together give a palindrome (26233262).

The spelling of 221121404121122 in words is "two hundred twenty-one trillion, one hundred twenty-one billion, four hundred four million, one hundred twenty-one thousand, one hundred twenty-two".