2422012121 has 4 divisors (see below), whose sum is σ = 2422670244. Its totient is φ = 2421354000.

The previous prime is 2422012069. The next prime is 2422012157. The reversal of 2422012121 is 1212102242.

2422012121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 754106521 + 1667905600 = 27461^2 + 40840^2 .

It is a cyclic number.

It is not a de Polignac number, because 2422012121 - 2⁶ = 2422012057 is a prime.

It is a super-2 number, since 2×2422012121² = 11732285428541837282, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2422012121.

It is not an unprimeable number, because it can be changed into a prime (2422014121) 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, 323510 + ... + 330911.

It is an arithmetic number, because the mean of its divisors is an integer number (605667561).

Almost surely, 2^2422012121 is an apocalyptic number.

It is an amenable number.

2422012121 is a deficient number, since it is larger than the sum of its proper divisors (658123).

2422012121 is an equidigital number, since it uses as much as digits as its factorization.

2422012121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658122.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 2422012121 is about 49213.9423436083. The cubic root of 2422012121 is about 1342.9466826318.

Adding to 2422012121 its reverse (1212102242), we get a palindrome (3634114363).

The spelling of 2422012121 in words is "two billion, four hundred twenty-two million, twelve thousand, one hundred twenty-one".