221121040121122 has 16 divisors (see below), whose sum is σ = 336665868755832. Its totient is φ = 108910197155200.

The previous prime is 221121040121087. The next prime is 221121040121183.

221121040121122 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 221055907466601 + 65132654521 = 14867949^2 + 255211^2 .

It is a junction number, because it is equal to n+sod(n) for n = 221121040121093 and 221121040121102.

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, 2778281563 + ... + 2778361150.

Almost surely, 2^{221121040121122} is an apocalyptic number.

221121040121122 is a deficient number, since it is larger than the sum of its proper divisors (115544828634710).

221121040121122 is a wasteful number, since it uses less digits than its factorization.

221121040121122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5556643013.

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

The spelling of 221121040121122 in words is "two hundred twenty-one trillion, one hundred twenty-one billion, forty million, one hundred twenty-one thousand, one hundred twenty-two".