10000122121099 has 4 divisors (see below), whose sum is σ = 10909224132120. Its totient is φ = 9091020110080.

The previous prime is 10000122121039. The next prime is 10000122121109. The reversal of 10000122121099 is 99012122100001.

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

It is a cyclic number.

It is not a de Polignac number, because 10000122121099 - 2⁷ = 10000122120971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10000122121039) 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, 454551005494 + ... + 454551005515.

It is an arithmetic number, because the mean of its divisors is an integer number (2727306033030).

Almost surely, 2^{10000122121099} is an apocalyptic number.

10000122121099 is a deficient number, since it is larger than the sum of its proper divisors (909102011021).

10000122121099 is an equidigital number, since it uses as much as digits as its factorization.

10000122121099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909102011020.

The product of its (nonzero) digits is 648, while the sum is 28.

The spelling of 10000122121099 in words is "ten trillion, one hundred twenty-two million, one hundred twenty-one thousand, ninety-nine".