10221202002001 has 4 divisors (see below), whose sum is σ = 10224217998900. Its totient is φ = 10218186005104.

The previous prime is 10221202001917. The next prime is 10221202002019. The reversal of 10221202002001 is 10020020212201.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9448393982976 + 772808019025 = 3073824^2 + 879095^2 .

It is a cyclic number.

It is not a de Polignac number, because 10221202002001 - 2⁷ = 10221202001873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10221202002031) 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, 1507993366 + ... + 1508000143.

It is an arithmetic number, because the mean of its divisors is an integer number (2556054499725).

Almost surely, 2^{10221202002001} is an apocalyptic number.

It is an amenable number.

10221202002001 is a deficient number, since it is larger than the sum of its proper divisors (3015996899).

10221202002001 is an equidigital number, since it uses as much as digits as its factorization.

10221202002001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3015996898.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 10221202002001 its reverse (10020020212201), we get a palindrome (20241222214202).

It can be divided in two parts, 1022120 and 2002001, that added together give a square (3024121 = 1739²).

The spelling of 10221202002001 in words is "ten trillion, two hundred twenty-one billion, two hundred two million, two thousand, one".