20111010222201 has 4 divisors (see below), whose sum is σ = 26814680296272. Its totient is φ = 13407340148132.

The previous prime is 20111010222077. The next prime is 20111010222203. The reversal of 20111010222201 is 10222201011102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20111010222201 - 2¹⁷ = 20111010091129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20111010222203) 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 3 ways as a sum of consecutive naturals, for example, 3351835037031 + ... + 3351835037036.

It is an arithmetic number, because the mean of its divisors is an integer number (6703670074068).

Almost surely, 2^{20111010222201} is an apocalyptic number.

It is an amenable number.

20111010222201 is a deficient number, since it is larger than the sum of its proper divisors (6703670074071).

20111010222201 is an equidigital number, since it uses as much as digits as its factorization.

20111010222201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6703670074070.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20111010222201 its reverse (10222201011102), we get a palindrome (30333211233303).

The spelling of 20111010222201 in words is "twenty trillion, one hundred eleven billion, ten million, two hundred twenty-two thousand, two hundred one".