20201102222011 has 4 divisors (see below), whose sum is σ = 20456812376800. Its totient is φ = 19945392067224.

The previous prime is 20201102221991. The next prime is 20201102222083. The reversal of 20201102222011 is 11022220110202.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20201102222011 is a prime.

It is a super-3 number, since 3×20201102222011³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20001102222011) 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, 127855077276 + ... + 127855077433.

It is an arithmetic number, because the mean of its divisors is an integer number (5114203094200).

Almost surely, 2^{20201102222011} is an apocalyptic number.

20201102222011 is a deficient number, since it is larger than the sum of its proper divisors (255710154789).

20201102222011 is an equidigital number, since it uses as much as digits as its factorization.

20201102222011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255710154788.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20201102222011 its reverse (11022220110202), we get a palindrome (31223322332213).

The spelling of 20201102222011 in words is "twenty trillion, two hundred one billion, one hundred two million, two hundred twenty-two thousand, eleven".