22012111211011 has 4 divisors (see below), whose sum is σ = 22722179314624. Its totient is φ = 21302043107400.

The previous prime is 22012111210997. The next prime is 22012111211023. The reversal of 22012111211011 is 11011211121022.

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 22012111211011 - 2⁹ = 22012111210499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22012111211071) 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, 355034051760 + ... + 355034051821.

It is an arithmetic number, because the mean of its divisors is an integer number (5680544828656).

Almost surely, 2^{22012111211011} is an apocalyptic number.

22012111211011 is a deficient number, since it is larger than the sum of its proper divisors (710068103613).

22012111211011 is an equidigital number, since it uses as much as digits as its factorization.

22012111211011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710068103612.

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

Adding to 22012111211011 its reverse (11011211121022), we get a palindrome (33023322332033).

The spelling of 22012111211011 in words is "twenty-two trillion, twelve billion, one hundred eleven million, two hundred eleven thousand, eleven".