211120212001 has 4 divisors (see below), whose sum is σ = 211122548100. Its totient is φ = 211117875904.

The previous prime is 211120211999. The next prime is 211120212059. The reversal of 211120212001 is 100212021112.

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 120964144401 + 90156067600 = 347799^2 + 300260^2 .

It is a cyclic number.

It is not a de Polignac number, because 211120212001 - 2¹ = 211120211999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211120212301) 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, 1026796 + ... + 1215133.

It is an arithmetic number, because the mean of its divisors is an integer number (52780637025).

Almost surely, 2^211120212001 is an apocalyptic number.

It is an amenable number.

211120212001 is a deficient number, since it is larger than the sum of its proper divisors (2336099).

211120212001 is an equidigital number, since it uses as much as digits as its factorization.

211120212001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2336098.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 211120212001 its reverse (100212021112), we get a palindrome (311332233113).

The spelling of 211120212001 in words is "two hundred eleven billion, one hundred twenty million, two hundred twelve thousand, one".