2121625301 has 4 divisors (see below), whose sum is σ = 2125341504. Its totient is φ = 2117909100.

The previous prime is 2121625277. The next prime is 2121625321. The reversal of 2121625301 is 1035261212.

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 2121625301 - 2¹⁴ = 2121608917 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 (2121625321) 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, 1857245 + ... + 1858386.

It is an arithmetic number, because the mean of its divisors is an integer number (531335376).

Almost surely, 2^2121625301 is an apocalyptic number.

It is an amenable number.

2121625301 is a deficient number, since it is larger than the sum of its proper divisors (3716203).

2121625301 is an equidigital number, since it uses as much as digits as its factorization.

2121625301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3716202.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 2121625301 is about 46061.1039924143. The cubic root of 2121625301 is about 1284.9598620801.

Adding to 2121625301 its reverse (1035261212), we get a palindrome (3156886513).

The spelling of 2121625301 in words is "two billion, one hundred twenty-one million, six hundred twenty-five thousand, three hundred one".