20100022221211 has 4 divisors (see below), whose sum is σ = 20479267923552. Its totient is φ = 19720776518872.

The previous prime is 20100022221203. The next prime is 20100022221217. The reversal of 20100022221211 is 11212222000102.

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 20100022221211 - 2³ = 20100022221203 is a prime.

It is a super-4 number, since 4×20100022221211⁴ (a number of 54 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20100022221217) 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, 189622851091 + ... + 189622851196.

It is an arithmetic number, because the mean of its divisors is an integer number (5119816980888).

Almost surely, 2^{20100022221211} is an apocalyptic number.

20100022221211 is a deficient number, since it is larger than the sum of its proper divisors (379245702341).

20100022221211 is an equidigital number, since it uses as much as digits as its factorization.

20100022221211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379245702340.

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

Adding to 20100022221211 its reverse (11212222000102), we get a palindrome (31312244221313).

The spelling of 20100022221211 in words is "twenty trillion, one hundred billion, twenty-two million, two hundred twenty-one thousand, two hundred eleven".