10221121022001 has 4 divisors (see below), whose sum is σ = 13628161362672. Its totient is φ = 6814080681332.

The previous prime is 10221121021973. The next prime is 10221121022017. The reversal of 10221121022001 is 10022012112201.

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 10221121022001 - 2¹⁰ = 10221121020977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10221121022041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1703520170331 + ... + 1703520170336.

It is an arithmetic number, because the mean of its divisors is an integer number (3407040340668).

Almost surely, 2^{10221121022001} is an apocalyptic number.

It is an amenable number.

10221121022001 is a deficient number, since it is larger than the sum of its proper divisors (3407040340671).

10221121022001 is an equidigital number, since it uses as much as digits as its factorization.

10221121022001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3407040340670.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 10221121022001 its reverse (10022012112201), we get a palindrome (20243133134202).

The spelling of 10221121022001 in words is "ten trillion, two hundred twenty-one billion, one hundred twenty-one million, twenty-two thousand, one".