20012211001001 has 8 divisors (see below), whose sum is σ = 20164685487744. Its totient is φ = 19860159468240.

The previous prime is 20012211000979. The next prime is 20012211001031. The reversal of 20012211001001 is 10010011221002.

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 20012211001001 - 2¹⁴ = 20012210984617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20012211001031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105643505 + ... + 105832766.

It is an arithmetic number, because the mean of its divisors is an integer number (2520585685968).

Almost surely, 2^{20012211001001} is an apocalyptic number.

It is an amenable number.

20012211001001 is a deficient number, since it is larger than the sum of its proper divisors (152474486743).

20012211001001 is a wasteful number, since it uses less digits than its factorization.

20012211001001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211476991.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20012211001001 its reverse (10010011221002), we get a palindrome (30022222222003).

The spelling of 20012211001001 in words is "twenty trillion, twelve billion, two hundred eleven million, one thousand, one".