20012222212011 has 24 divisors (see below), whose sum is σ = 30607097451840. Its totient is φ = 12556618964736.

The previous prime is 20012222212001. The next prime is 20012222212039. The reversal of 20012222212011 is 11021222221002.

It is a happy number.

20012222212011 is a `hidden beast` number, since 20 + 0 + 1 + 222 + 221 + 201 + 1 = 666.

It is not a de Polignac number, because 20012222212011 - 2¹⁴ = 20012222195627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20012222212001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53230030 + ... + 53604668.

It is an arithmetic number, because the mean of its divisors is an integer number (1275295727160).

Almost surely, 2^{20012222212011} is an apocalyptic number.

20012222212011 is a deficient number, since it is larger than the sum of its proper divisors (10594875239829).

20012222212011 is a wasteful number, since it uses less digits than its factorization.

20012222212011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723795 (or 723792 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 20012222212011 its reverse (11021222221002), we get a palindrome (31033444433013).

The spelling of 20012222212011 in words is "twenty trillion, twelve billion, two hundred twenty-two million, two hundred twelve thousand, eleven".