211120202211001 has 4 divisors (see below), whose sum is σ = 215103602252772. Its totient is φ = 207136802169232.

The previous prime is 211120202210987. The next prime is 211120202211053. The reversal of 211120202211001 is 100112202021112.

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 125537795053225 + 85582407157776 = 11204365^2 + 9251076^2 .

It is a cyclic number.

It is not a de Polignac number, because 211120202211001 - 2²⁷ = 211120067993273 is a prime.

It is a super-2 number, since 2×211120202211001² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211120202211701) 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, 1991700020806 + ... + 1991700020911.

It is an arithmetic number, because the mean of its divisors is an integer number (53775900563193).

Almost surely, 2^{211120202211001} is an apocalyptic number.

It is an amenable number.

211120202211001 is a deficient number, since it is larger than the sum of its proper divisors (3983400041771).

211120202211001 is an equidigital number, since it uses as much as digits as its factorization.

211120202211001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3983400041770.

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

Adding to 211120202211001 its reverse (100112202021112), we get a palindrome (311232404232113).

The spelling of 211120202211001 in words is "two hundred eleven trillion, one hundred twenty billion, two hundred two million, two hundred eleven thousand, one".