10404220412121 has 8 divisors (see below), whose sum is σ = 13873788618144. Its totient is φ = 6935399573760.

The previous prime is 10404220412093. The next prime is 10404220412137. The reversal of 10404220412121 is 12121402240401.

It is a happy number.

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

It is not a de Polignac number, because 10404220412121 - 2³⁴ = 10387040542937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10404220412091 and 10404220412100.

It is not an unprimeable number, because it can be changed into a prime (10404220410121) 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, 186809431 + ... + 186865116.

It is an arithmetic number, because the mean of its divisors is an integer number (1734223577268).

Almost surely, 2^{10404220412121} is an apocalyptic number.

It is an amenable number.

10404220412121 is a deficient number, since it is larger than the sum of its proper divisors (3469568206023).

10404220412121 is an equidigital number, since it uses as much as digits as its factorization.

10404220412121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373683831.

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 10404220412121 its reverse (12121402240401), we get a palindrome (22525622652522).

The spelling of 10404220412121 in words is "ten trillion, four hundred four billion, two hundred twenty million, four hundred twelve thousand, one hundred twenty-one".