212021212011 has 8 divisors (see below), whose sum is σ = 323079942144. Its totient is φ = 121154978280.

The previous prime is 212021211959. The next prime is 212021212061. The reversal of 212021212011 is 110212120212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212021212011 - 2¹³ = 212021203819 is a prime.

It is a super-2 number, since 2×212021212011² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212021212061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5048124075 + ... + 5048124116.

It is an arithmetic number, because the mean of its divisors is an integer number (40384992768).

Almost surely, 2^212021212011 is an apocalyptic number.

212021212011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

212021212011 is a deficient number, since it is larger than the sum of its proper divisors (111058730133).

212021212011 is a wasteful number, since it uses less digits than its factorization.

212021212011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10096248201.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212021212011 its reverse (110212120212), we get a palindrome (322233332223).

The spelling of 212021212011 in words is "two hundred twelve billion, twenty-one million, two hundred twelve thousand, eleven".