1212141144 has 32 divisors (see below), whose sum is σ = 3034779840. Its totient is φ = 403456800.

The previous prime is 1212141143. The next prime is 1212141163. The reversal of 1212141144 is 4411412121.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 1212141144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212141143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19962 + ... + 53129.

It is an arithmetic number, because the mean of its divisors is an integer number (94836870).

Almost surely, 2^1212141144 is an apocalyptic number.

It is an amenable number.

1212141144 is an abundant number, since it is smaller than the sum of its proper divisors (1822638696).

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

1212141144 is a wasteful number, since it uses less digits than its factorization.

1212141144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73791 (or 73787 counting only the distinct ones).

The product of its digits is 256, while the sum is 21.

The square root of 1212141144 is about 34815.8174397787. The cubic root of 1212141144 is about 1066.2304084906.

Adding to 1212141144 its reverse (4411412121), we get a palindrome (5623553265).

The spelling of 1212141144 in words is "one billion, two hundred twelve million, one hundred forty-one thousand, one hundred forty-four".