10211210221001 has 8 divisors (see below), whose sum is σ = 10220250399240. Its totient is φ = 10202171069952.

The previous prime is 10211210220983. The next prime is 10211210221067. The reversal of 10211210221001 is 10012201211201.

It can be written as a sum of positive squares in 4 ways, for example, as 24254947600 + 10186955273401 = 155740^2 + 3191701^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10211210221001 is a prime.

It is a super-2 number, since 2×10211210221001² (a number of 27 digits) contains 22 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 (10211210221301) 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, 20364815 + ... + 20860203.

It is an arithmetic number, because the mean of its divisors is an integer number (1277531299905).

Almost surely, 2^{10211210221001} is an apocalyptic number.

It is an amenable number.

10211210221001 is a deficient number, since it is larger than the sum of its proper divisors (9040178239).

10211210221001 is a wasteful number, since it uses less digits than its factorization.

10211210221001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513595.

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

Adding to 10211210221001 its reverse (10012201211201), we get a palindrome (20223411432202).

The spelling of 10211210221001 in words is "ten trillion, two hundred eleven billion, two hundred ten million, two hundred twenty-one thousand, one".