1220124144 has 40 divisors (see below), whose sum is σ = 3169618560. Its totient is φ = 404433088.

The previous prime is 1220124131. The next prime is 1220124151. The reversal of 1220124144 is 4414210221.

1220124144 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×1220124144³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1220124144.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62412 + ... + 79595.

It is an arithmetic number, because the mean of its divisors is an integer number (79240464).

Almost surely, 2^1220124144 is an apocalyptic number.

It is an amenable number.

1220124144 is an abundant number, since it is smaller than the sum of its proper divisors (1949494416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1220124144 is a wasteful number, since it uses less digits than its factorization.

1220124144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142197 (or 142191 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 1220124144 is about 34930.2754641300. The cubic root of 1220124144 is about 1068.5659725138.

Adding to 1220124144 its reverse (4414210221), we get a palindrome (5634334365).

The spelling of 1220124144 in words is "one billion, two hundred twenty million, one hundred twenty-four thousand, one hundred forty-four".