20111222211103 has 8 divisors (see below), whose sum is σ = 20490808718016. Its totient is φ = 19731640500000.

The previous prime is 20111222211007. The next prime is 20111222211109. The reversal of 20111222211103 is 30111222211102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20111222211103 - 2²¹ = 20111220113951 is a prime.

It is a super-2 number, since 2×20111222211103² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20111222211109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7914853 + ... + 10142353.

It is an arithmetic number, because the mean of its divisors is an integer number (2561351089752).

Almost surely, 2^{20111222211103} is an apocalyptic number.

20111222211103 is a deficient number, since it is larger than the sum of its proper divisors (379586506913).

20111222211103 is a wasteful number, since it uses less digits than its factorization.

20111222211103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2397905.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 20111222211103 its reverse (30111222211102), we get a palindrome (50222444422205).

Subtracting 20111222211103 from its reverse (30111222211102), we obtain a palindrome (9999999999999).

The spelling of 20111222211103 in words is "twenty trillion, one hundred eleven billion, two hundred twenty-two million, two hundred eleven thousand, one hundred three".