10021122001 has 4 divisors (see below), whose sum is σ = 10932133104. Its totient is φ = 9110110900.

The previous prime is 10021121993. The next prime is 10021122019. The reversal of 10021122001 is 10022112001.

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 not a de Polignac number, because 10021122001 - 2³ = 10021121993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10021122301) 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, 455505535 + ... + 455505556.

It is an arithmetic number, because the mean of its divisors is an integer number (2733033276).

Almost surely, 2^10021122001 is an apocalyptic number.

10021122001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10021122001 is a deficient number, since it is larger than the sum of its proper divisors (911011103).

10021122001 is an equidigital number, since it uses as much as digits as its factorization.

10021122001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911011102.

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

Adding to 10021122001 its reverse (10022112001), we get a palindrome (20043234002).

The spelling of 10021122001 in words is "ten billion, twenty-one million, one hundred twenty-two thousand, one".