212120000220011 has 16 divisors (see below), whose sum is σ = 228966852162720. Its totient is φ = 195348861734400.

The previous prime is 212120000219989. The next prime is 212120000220071. The reversal of 212120000220011 is 110022000021212.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212120000220011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212120000220071) 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, 1049431625 + ... + 1049633733.

It is an arithmetic number, because the mean of its divisors is an integer number (14310428260170).

Almost surely, 2^{212120000220011} is an apocalyptic number.

212120000220011 is a deficient number, since it is larger than the sum of its proper divisors (16846851942709).

212120000220011 is a wasteful number, since it uses less digits than its factorization.

212120000220011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389006.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 212120000220011 its reverse (110022000021212), we get a palindrome (322142000241223).

The spelling of 212120000220011 in words is "two hundred twelve trillion, one hundred twenty billion, two hundred twenty thousand, eleven".