2122621425 has 36 divisors (see below), whose sum is σ = 3838803904. Its totient is φ = 1121061600.

The previous prime is 2122621421. The next prime is 2122621451. The reversal of 2122621425 is 5241262212.

2122621425 is a `hidden beast` number, since 2 + 12 + 2 + 621 + 4 + 25 = 666.

2122621425 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2122621425 - 2² = 2122621421 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2122621421) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 22621 + ... + 68970.

Almost surely, 2^2122621425 is an apocalyptic number.

2122621425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2122621425 is a deficient number, since it is larger than the sum of its proper divisors (1716182479).

2122621425 is a wasteful number, since it uses less digits than its factorization.

2122621425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91710 (or 91702 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 2122621425 is about 46071.9157947659. The cubic root of 2122621425 is about 1285.1609310574.

Adding to 2122621425 its reverse (5241262212), we get a palindrome (7363883637).

The spelling of 2122621425 in words is "two billion, one hundred twenty-two million, six hundred twenty-one thousand, four hundred twenty-five".