2211002100101 has 4 divisors (see below), whose sum is σ = 2211005121804. Its totient is φ = 2210999078400.

The previous prime is 2211002100029. The next prime is 2211002100149. The reversal of 2211002100101 is 1010012001122.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1064871269476 + 1146130830625 = 1031926^2 + 1070575^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2211002100101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211002100701) 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, 353861 + ... + 2132421.

It is an arithmetic number, because the mean of its divisors is an integer number (552751280451).

Almost surely, 2^{2211002100101} is an apocalyptic number.

It is an amenable number.

2211002100101 is a deficient number, since it is larger than the sum of its proper divisors (3021703).

2211002100101 is a wasteful number, since it uses less digits than its factorization.

2211002100101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3021702.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 2211002100101 its reverse (1010012001122), we get a palindrome (3221014101223).

The spelling of 2211002100101 in words is "two trillion, two hundred eleven billion, two million, one hundred thousand, one hundred one".