121223404322121 has 8 divisors (see below), whose sum is σ = 161675646581824. Its totient is φ = 80793382471920.

The previous prime is 121223404322101. The next prime is 121223404322123.

121223404322121 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121223404322121 - 2⁹ = 121223404321609 is a prime.

It is a super-2 number, since 2×121223404322121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121223404322123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5555089645 + ... + 5555111466.

It is an arithmetic number, because the mean of its divisors is an integer number (20209455822728).

Almost surely, 2^{121223404322121} is an apocalyptic number.

It is an amenable number.

121223404322121 is a deficient number, since it is larger than the sum of its proper divisors (40452242259703).

121223404322121 is a wasteful number, since it uses less digits than its factorization.

121223404322121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11110204751.

The product of its (nonzero) digits is 9216, while the sum is 30.

It can be divided in two parts, 12122340 and 4322121, that added together give a palindrome (16444461).

The spelling of 121223404322121 in words is "one hundred twenty-one trillion, two hundred twenty-three billion, four hundred four million, three hundred twenty-two thousand, one hundred twenty-one".