10011220001 has 4 divisors (see below), whose sum is σ = 10023565104. Its totient is φ = 9998874900.

The previous prime is 10011219997. The next prime is 10011220013. The reversal of 10011220001 is 10002211001.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10002211001 = 17 ⋅588365353.

It is a cyclic number.

It is not a de Polignac number, because 10011220001 - 2² = 10011219997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10011220201) 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, 6171335 + ... + 6172956.

It is an arithmetic number, because the mean of its divisors is an integer number (2505891276).

Almost surely, 2^10011220001 is an apocalyptic number.

It is an amenable number.

10011220001 is a deficient number, since it is larger than the sum of its proper divisors (12345103).

10011220001 is an equidigital number, since it uses as much as digits as its factorization.

10011220001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12345102.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 10011220001 its reverse (10002211001), we get a palindrome (20013431002).

The spelling of 10011220001 in words is "ten billion, eleven million, two hundred twenty thousand, one".