20010122221001 has 8 divisors (see below), whose sum is σ = 21893999391264. Its totient is φ = 18137040909120.

The previous prime is 20010122220929. The next prime is 20010122221031. The reversal of 20010122221001 is 10012222101002.

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 20010122221001 - 2¹⁰ = 20010122219977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20010122221031) 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, 2698960715 + ... + 2698968128.

It is an arithmetic number, because the mean of its divisors is an integer number (2736749923908).

Almost surely, 2^{20010122221001} is an apocalyptic number.

It is an amenable number.

20010122221001 is a deficient number, since it is larger than the sum of its proper divisors (1883877170263).

20010122221001 is a wasteful number, since it uses less digits than its factorization.

20010122221001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5397929191.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20010122221001 its reverse (10012222101002), we get a palindrome (30022344322003).

The spelling of 20010122221001 in words is "twenty trillion, ten billion, one hundred twenty-two million, two hundred twenty-one thousand, one".