10221011212001 has 4 divisors (see below), whose sum is σ = 10227903331632. Its totient is φ = 10214119092372.

The previous prime is 10221011211913. The next prime is 10221011212019. The reversal of 10221011212001 is 10021211012201.

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 10221011212001 - 2¹⁸ = 10221010949857 is a prime.

It is a super-3 number, since 3×10221011212001³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10221011212901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3446057591 + ... + 3446060556.

It is an arithmetic number, because the mean of its divisors is an integer number (2556975832908).

Almost surely, 2^{10221011212001} is an apocalyptic number.

It is an amenable number.

10221011212001 is a deficient number, since it is larger than the sum of its proper divisors (6892119631).

10221011212001 is an equidigital number, since it uses as much as digits as its factorization.

10221011212001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6892119630.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 10221011212001 its reverse (10021211012201), we get a palindrome (20242222224202).

The spelling of 10221011212001 in words is "ten trillion, two hundred twenty-one billion, eleven million, two hundred twelve thousand, one".