20000022222211 has 4 divisors (see below), whose sum is σ = 20000051925624. Its totient is φ = 19999992518800.

The previous prime is 20000022222199. The next prime is 20000022222221. The reversal of 20000022222211 is 11222222000002.

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 20000022222211 - 2¹¹ = 20000022220163 is a prime.

It is a super-4 number, since 4×20000022222211⁴ (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 (20000022222221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13817725 + ... + 15196366.

It is an arithmetic number, because the mean of its divisors is an integer number (5000012981406).

Almost surely, 2^{20000022222211} is an apocalyptic number.

20000022222211 is a deficient number, since it is larger than the sum of its proper divisors (29703413).

20000022222211 is an equidigital number, since it uses as much as digits as its factorization.

20000022222211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29703412.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20000022222211 its reverse (11222222000002), we get a palindrome (31222244222213).

The spelling of 20000022222211 in words is "twenty trillion, twenty-two million, two hundred twenty-two thousand, two hundred eleven".