1212040050 has 96 divisors (see below), whose sum is σ = 3285748032. Its totient is φ = 293863680.

The previous prime is 1212040021. The next prime is 1212040051. The reversal of 1212040050 is 500402121.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (1212040051) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 126012 + ... + 135288.

It is an arithmetic number, because the mean of its divisors is an integer number (34226542).

Almost surely, 2^1212040050 is an apocalyptic number.

1212040050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1212040050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1642874016).

1212040050 is an abundant number, since it is smaller than the sum of its proper divisors (2073707982).

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

1212040050 is a wasteful number, since it uses less digits than its factorization.

1212040050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9372 (or 9367 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 1212040050 is about 34814.3655694025. The cubic root of 1212040050 is about 1066.2007660422.

Adding to 1212040050 its reverse (500402121), we get a palindrome (1712442171).

The spelling of 1212040050 in words is "one billion, two hundred twelve million, forty thousand, fifty".