2201021010101 has 4 divisors (see below), whose sum is σ = 2237103321804. Its totient is φ = 2164938698400.

The previous prime is 2201021010073. The next prime is 2201021010127. The reversal of 2201021010101 is 1010101201022.

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 530167471876 + 1670853538225 = 728126^2 + 1292615^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2201021010101 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 (2201021010131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18041155760 + ... + 18041155881.

It is an arithmetic number, because the mean of its divisors is an integer number (559275830451).

Almost surely, 2^{2201021010101} is an apocalyptic number.

It is an amenable number.

2201021010101 is a deficient number, since it is larger than the sum of its proper divisors (36082311703).

2201021010101 is an equidigital number, since it uses as much as digits as its factorization.

2201021010101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36082311702.

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

Adding to 2201021010101 its reverse (1010101201022), we get a palindrome (3211122211123).

The spelling of 2201021010101 in words is "two trillion, two hundred one billion, twenty-one million, ten thousand, one hundred one".