1244100212 has 12 divisors (see below), whose sum is σ = 2179997316. Its totient is φ = 621243840.

The previous prime is 1244100211. The next prime is 1244100223. The reversal of 1244100212 is 2120014421.

It can be written as a sum of positive squares in 2 ways, for example, as 120912016 + 1123188196 = 10996^2 + 33514^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244100211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198089 + ... + 204272.

It is an arithmetic number, because the mean of its divisors is an integer number (181666443).

Almost surely, 2^1244100212 is an apocalyptic number.

It is an amenable number.

1244100212 is a deficient number, since it is larger than the sum of its proper divisors (935897104).

1244100212 is a wasteful number, since it uses less digits than its factorization.

1244100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403138 (or 403136 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1244100212 is about 35271.8047737850. The cubic root of 1244100212 is about 1075.5199106167.

Adding to 1244100212 its reverse (2120014421), we get a palindrome (3364114633).

The spelling of 1244100212 in words is "one billion, two hundred forty-four million, one hundred thousand, two hundred twelve".