212120201011101 has 32 divisors (see below), whose sum is σ = 283626627701760. Its totient is φ = 141014163763200.

The previous prime is 212120201011097. The next prime is 212120201011123. The reversal of 212120201011101 is 101110102021212.

It is a happy number.

It is not a de Polignac number, because 212120201011101 - 2² = 212120201011097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212120201011181) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11726465665 + ... + 11726483753.

It is an arithmetic number, because the mean of its divisors is an integer number (8863332115680).

Almost surely, 2^{212120201011101} is an apocalyptic number.

It is an amenable number.

212120201011101 is a deficient number, since it is larger than the sum of its proper divisors (71506426690659).

212120201011101 is a wasteful number, since it uses less digits than its factorization.

212120201011101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24997.

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

Adding to 212120201011101 its reverse (101110102021212), we get a palindrome (313230303032313).

The spelling of 212120201011101 in words is "two hundred twelve trillion, one hundred twenty billion, two hundred one million, eleven thousand, one hundred one".