20002001222011 has 4 divisors (see below), whose sum is σ = 20011859282800. Its totient is φ = 19992143161224.

The previous prime is 20002001221973. The next prime is 20002001222101. The reversal of 20002001222011 is 11022210020002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20002001222011 - 2⁴³ = 11205908199803 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20002001221982 and 20002001222000.

It is not an unprimeable number, because it can be changed into a prime (20002001222611) 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, 4929027351 + ... + 4929031408.

It is an arithmetic number, because the mean of its divisors is an integer number (5002964820700).

Almost surely, 2^{20002001222011} is an apocalyptic number.

20002001222011 is a deficient number, since it is larger than the sum of its proper divisors (9858060789).

20002001222011 is an equidigital number, since it uses as much as digits as its factorization.

20002001222011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9858060788.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20002001222011 its reverse (11022210020002), we get a palindrome (31024211242013).

The spelling of 20002001222011 in words is "twenty trillion, two billion, one million, two hundred twenty-two thousand, eleven".