2011210110001 has 4 divisors (see below), whose sum is σ = 2044180767604. Its totient is φ = 1978239452400.

The previous prime is 2011210109927. The next prime is 2011210110023. The reversal of 2011210110001 is 1000110121102.

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 172341219600 + 1838868890401 = 415140^2 + 1356049^2 .

It is a cyclic number.

It is not a de Polignac number, because 2011210110001 - 2¹¹ = 2011210107953 is a prime.

It is a super-2 number, since 2×2011210110001² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2011210110001.

It is not an unprimeable number, because it can be changed into a prime (2011210120001) 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, 16485328710 + ... + 16485328831.

It is an arithmetic number, because the mean of its divisors is an integer number (511045191901).

Almost surely, 2^{2011210110001} is an apocalyptic number.

It is an amenable number.

2011210110001 is a deficient number, since it is larger than the sum of its proper divisors (32970657603).

2011210110001 is an equidigital number, since it uses as much as digits as its factorization.

2011210110001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32970657602.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 2011210110001 its reverse (1000110121102), we get a palindrome (3011320231103).

It can be divided in two parts, 20112101 and 10001, that added together give a palindrome (20122102).

The spelling of 2011210110001 in words is "two trillion, eleven billion, two hundred ten million, one hundred ten thousand, one".