121122444221121 has 16 divisors (see below), whose sum is σ = 184568033868800. Its totient is φ = 69212637837648.

The previous prime is 121122444221117. The next prime is 121122444221179.

121122444221121 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 121122444221121 - 2² = 121122444221117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121122444221321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 326790 + ... + 15567648.

It is an arithmetic number, because the mean of its divisors is an integer number (11535502116800).

Almost surely, 2^{121122444221121} is an apocalyptic number.

It is an amenable number.

121122444221121 is a deficient number, since it is larger than the sum of its proper divisors (63445589647679).

121122444221121 is a wasteful number, since it uses less digits than its factorization.

121122444221121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15619308.

The product of its digits is 4096, while the sum is 30.

The spelling of 121122444221121 in words is "one hundred twenty-one trillion, one hundred twenty-two billion, four hundred forty-four million, two hundred twenty-one thousand, one hundred twenty-one".