22121201110011 has 16 divisors (see below), whose sum is σ = 30477357373440. Its totient is φ = 14257224034560.

The previous prime is 22121201109937. The next prime is 22121201110013. The reversal of 22121201110011 is 11001110212122.

It is a happy number.

It is not a de Polignac number, because 22121201110011 - 2⁹ = 22121201109499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22121201110013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120896566 + ... + 121079403.

It is an arithmetic number, because the mean of its divisors is an integer number (1904834835840).

Almost surely, 2^{22121201110011} is an apocalyptic number.

22121201110011 is a deficient number, since it is larger than the sum of its proper divisors (8356156263429).

22121201110011 is a wasteful number, since it uses less digits than its factorization.

22121201110011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241976986.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 22121201110011 its reverse (11001110212122), we get a palindrome (33122311322133).

The spelling of 22121201110011 in words is "twenty-two trillion, one hundred twenty-one billion, two hundred one million, one hundred ten thousand, eleven".