10221011022121 has 4 divisors (see below), whose sum is σ = 10458708952912. Its totient is φ = 9983313091332.

The previous prime is 10221011022107. The next prime is 10221011022161. The reversal of 10221011022121 is 12122011012201.

10221011022121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10221011022121 - 2²⁵ = 10220977467689 is a prime.

It is a super-3 number, since 3×10221011022121³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10221011022095 and 10221011022104.

It is not an unprimeable number, because it can be changed into a prime (10221011022161) 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, 118848965331 + ... + 118848965416.

It is an arithmetic number, because the mean of its divisors is an integer number (2614677238228).

Almost surely, 2^{10221011022121} is an apocalyptic number.

It is an amenable number.

10221011022121 is a deficient number, since it is larger than the sum of its proper divisors (237697930791).

10221011022121 is an equidigital number, since it uses as much as digits as its factorization.

10221011022121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237697930790.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 10221011022121 its reverse (12122011012201), we get a palindrome (22343022034322).

The spelling of 10221011022121 in words is "ten trillion, two hundred twenty-one billion, eleven million, twenty-two thousand, one hundred twenty-one".