22012011111021 has 32 divisors (see below), whose sum is σ = 30178531117056. Its totient is φ = 14262789744000.

The previous prime is 22012011110953. The next prime is 22012011111047. The reversal of 22012011111021 is 12011111021022.

It is a happy number.

It is not a de Polignac number, because 22012011111021 - 2¹⁷ = 22012010979949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22012011111421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 690210486 + ... + 690242376.

It is an arithmetic number, because the mean of its divisors is an integer number (943079097408).

Almost surely, 2^{22012011111021} is an apocalyptic number.

It is an amenable number.

22012011111021 is a deficient number, since it is larger than the sum of its proper divisors (8166520006035).

22012011111021 is a wasteful number, since it uses less digits than its factorization.

22012011111021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52913.

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

Adding to 22012011111021 its reverse (12011111021022), we get a palindrome (34023122132043).

The spelling of 22012011111021 in words is "twenty-two trillion, twelve billion, eleven million, one hundred eleven thousand, twenty-one".