20212212011011 has 4 divisors (see below), whose sum is σ = 20401111188792. Its totient is φ = 20023312833232.

The previous prime is 20212212011009. The next prime is 20212212011027. The reversal of 20212212011011 is 11011021221202.

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 20212212011011 - 2¹ = 20212212011009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20212212011051) 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 3 ways as a sum of consecutive naturals, for example, 94449588730 + ... + 94449588943.

It is an arithmetic number, because the mean of its divisors is an integer number (5100277797198).

Almost surely, 2^{20212212011011} is an apocalyptic number.

20212212011011 is a deficient number, since it is larger than the sum of its proper divisors (188899177781).

20212212011011 is a wasteful number, since it uses less digits than its factorization.

20212212011011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188899177780.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20212212011011 its reverse (11011021221202), we get a palindrome (31223233232213).

The spelling of 20212212011011 in words is "twenty trillion, two hundred twelve billion, two hundred twelve million, eleven thousand, eleven".