3012120442 has 4 divisors (see below), whose sum is σ = 4518180666. Its totient is φ = 1506060220.

The previous prime is 3012120439. The next prime is 3012120493. The reversal of 3012120442 is 2440212103.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2993293521 + 18826921 = 54711^2 + 4339^2 .

It is a super-2 number, since 2×3012120442² = 18145739114228550728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 753030109 + ... + 753030112.

Almost surely, 2^3012120442 is an apocalyptic number.

3012120442 is a deficient number, since it is larger than the sum of its proper divisors (1506060224).

3012120442 is a wasteful number, since it uses less digits than its factorization.

3012120442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1506060223.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 3012120442 is about 54882.7882126993. The cubic root of 3012120442 is about 1444.1892606881.

Adding to 3012120442 its reverse (2440212103), we get a palindrome (5452332545).

The spelling of 3012120442 in words is "three billion, twelve million, one hundred twenty thousand, four hundred forty-two".