221121020121122 has 48 divisors (see below), whose sum is σ = 371748802803840. Its totient is φ = 98541105004320.

The previous prime is 221121020121121. The next prime is 221121020121137.

221121020121122 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 221121020121094 and 221121020121103.

It is not an unprimeable number, because it can be changed into a prime (221121020121121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15434138 + ... + 26085525.

It is an arithmetic number, because the mean of its divisors is an integer number (7744766725080).

Almost surely, 2^{221121020121122} is an apocalyptic number.

221121020121122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221121020121122 is a deficient number, since it is larger than the sum of its proper divisors (150627782682718).

221121020121122 is a wasteful number, since it uses less digits than its factorization.

221121020121122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41520119 (or 41520108 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

The spelling of 221121020121122 in words is "two hundred twenty-one trillion, one hundred twenty-one billion, twenty million, one hundred twenty-one thousand, one hundred twenty-two".