10122221211121 has 8 divisors (see below), whose sum is σ = 10135353795840. Its totient is φ = 10109091876912.

The previous prime is 10122221211079. The next prime is 10122221211149. The reversal of 10122221211121 is 12111212222101.

It is a happy number.

10122221211121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 10122221211121 - 2³⁹ = 9572465397233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10122221215121) 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, 5450770 + ... + 7067908.

It is an arithmetic number, because the mean of its divisors is an integer number (1266919224480).

Almost surely, 2^{10122221211121} is an apocalyptic number.

It is an amenable number.

10122221211121 is a deficient number, since it is larger than the sum of its proper divisors (13132584719).

10122221211121 is an equidigital number, since it uses as much as digits as its factorization.

10122221211121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1625255.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 10122221211121 its reverse (12111212222101), we get a palindrome (22233433433222).

The spelling of 10122221211121 in words is "ten trillion, one hundred twenty-two billion, two hundred twenty-one million, two hundred eleven thousand, one hundred twenty-one".