10021220001001 has 8 divisors (see below), whose sum is σ = 10934842346208. Its totient is φ = 9108031380000.

The previous prime is 10021220000977. The next prime is 10021220001011. The reversal of 10021220001001 is 10010002212001.

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

It is a cyclic number.

It is not a de Polignac number, because 10021220001001 - 2¹¹ = 10021219998953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10021220001011) 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, 108382735 + ... + 108475156.

It is an arithmetic number, because the mean of its divisors is an integer number (1366855293276).

Almost surely, 2^{10021220001001} is an apocalyptic number.

10021220001001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10021220001001 is a deficient number, since it is larger than the sum of its proper divisors (913622345207).

10021220001001 is a wasteful number, since it uses less digits than its factorization.

10021220001001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216862103.

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

Adding to 10021220001001 its reverse (10010002212001), we get a palindrome (20031222213002).

The spelling of 10021220001001 in words is "ten trillion, twenty-one billion, two hundred twenty million, one thousand, one".