212020201111001 has 4 divisors (see below), whose sum is σ = 212020240782900. Its totient is φ = 212020161439104.

The previous prime is 212020201110871. The next prime is 212020201111003. The reversal of 212020201111001 is 100111102020212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 81278356733401 + 130741844377600 = 9015451^2 + 11434240^2 .

It is a cyclic number.

It is not a de Polignac number, because 212020201111001 - 2¹⁴ = 212020201094617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212020201111003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10287236 + ... + 23018853.

It is an arithmetic number, because the mean of its divisors is an integer number (53005060195725).

Almost surely, 2^{212020201111001} is an apocalyptic number.

It is an amenable number.

212020201111001 is a deficient number, since it is larger than the sum of its proper divisors (39671899).

212020201111001 is an equidigital number, since it uses as much as digits as its factorization.

212020201111001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39671898.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 212020201111001 its reverse (100111102020212), we get a palindrome (312131303131213).

The spelling of 212020201111001 in words is "two hundred twelve trillion, twenty billion, two hundred one million, one hundred eleven thousand, one".