104122011040021 has 4 divisors (see below), whose sum is σ = 112131396504652. Its totient is φ = 96112625575392.

The previous prime is 104122011040007. The next prime is 104122011040087. The reversal of 104122011040021 is 120040110221401.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 57992580861796 + 46129430178225 = 7615286^2 + 6791865^2 .

It is a cyclic number.

It is not a de Polignac number, because 104122011040021 - 2⁵ = 104122011039989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104122011040001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4004692732296 + ... + 4004692732321.

It is an arithmetic number, because the mean of its divisors is an integer number (28032849126163).

Almost surely, 2^{104122011040021} is an apocalyptic number.

It is an amenable number.

104122011040021 is a deficient number, since it is larger than the sum of its proper divisors (8009385464631).

104122011040021 is an equidigital number, since it uses as much as digits as its factorization.

104122011040021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8009385464630.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 104122011040021 its reverse (120040110221401), we get a palindrome (224162121261422).

The spelling of 104122011040021 in words is "one hundred four trillion, one hundred twenty-two billion, eleven million, forty thousand, twenty-one".