2101212301 has 4 divisors (see below), whose sum is σ = 2101500000. Its totient is φ = 2100924604.

The previous prime is 2101212251. The next prime is 2101212317. The reversal of 2101212301 is 1032121012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2101212301 - 2⁹ = 2101211789 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101212361) 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, 132601 + ... + 147598.

It is an arithmetic number, because the mean of its divisors is an integer number (525375000).

Almost surely, 2^2101212301 is an apocalyptic number.

It is an amenable number.

2101212301 is a deficient number, since it is larger than the sum of its proper divisors (287699).

2101212301 is an equidigital number, since it uses as much as digits as its factorization.

2101212301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287698.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 2101212301 is about 45838.9823294540. The cubic root of 2101212301 is about 1280.8255378070.

Adding to 2101212301 its reverse (1032121012), we get a palindrome (3133333313).

The spelling of 2101212301 in words is "two billion, one hundred one million, two hundred twelve thousand, three hundred one".