1200100412 has 24 divisors (see below), whose sum is σ = 2445490656. Its totient is φ = 504623808.

The previous prime is 1200100387. The next prime is 1200100423. The reversal of 1200100412 is 2140010021.

It is a junction number, because it is equal to n+sod(n) for n = 1200100393 and 1200100402.

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, 402863 + ... + 405830.

It is an arithmetic number, because the mean of its divisors is an integer number (101895444).

Almost surely, 2^1200100412 is an apocalyptic number.

It is an amenable number.

1200100412 is an abundant number, since it is smaller than the sum of its proper divisors (1245390244).

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

1200100412 is a wasteful number, since it uses less digits than its factorization.

1200100412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808757 (or 808755 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1200100412 is about 34642.4654434409. The cubic root of 1200100412 is about 1062.6882082649.

Adding to 1200100412 its reverse (2140010021), we get a palindrome (3340110433).

The spelling of 1200100412 in words is "one billion, two hundred million, one hundred thousand, four hundred twelve".