2201020101 has 32 divisors (see below), whose sum is σ = 3730310400. Its totient is φ = 1256472000.

The previous prime is 2201020099. The next prime is 2201020111. The reversal of 2201020101 is 1010201022.

It is not a de Polignac number, because 2201020101 - 2¹ = 2201020099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201020111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 204351 + ... + 214851.

It is an arithmetic number, because the mean of its divisors is an integer number (116572200).

Almost surely, 2^2201020101 is an apocalyptic number.

2201020101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2201020101 is a deficient number, since it is larger than the sum of its proper divisors (1529290299).

2201020101 is a wasteful number, since it uses less digits than its factorization.

2201020101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11626 (or 11620 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 2201020101 is about 46915.0306511676. The cubic root of 2201020101 is about 1300.7924361888.

Adding to 2201020101 its reverse (1010201022), we get a palindrome (3211221123).

The spelling of 2201020101 in words is "two billion, two hundred one million, twenty thousand, one hundred one".