10002121201 has 4 divisors (see below), whose sum is σ = 10324770304. Its totient is φ = 9679472100.

The previous prime is 10002121153. The next prime is 10002121223. The reversal of 10002121201 is 10212120001.

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 10002121201 - 2¹⁷ = 10001990129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10002121231) 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, 161324505 + ... + 161324566.

It is an arithmetic number, because the mean of its divisors is an integer number (2581192576).

Almost surely, 2^10002121201 is an apocalyptic number.

It is an amenable number.

10002121201 is a deficient number, since it is larger than the sum of its proper divisors (322649103).

10002121201 is an equidigital number, since it uses as much as digits as its factorization.

10002121201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322649102.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 10002121201 its reverse (10212120001), we get a palindrome (20214241202).

The spelling of 10002121201 in words is "ten billion, two million, one hundred twenty-one thousand, two hundred one".