11442240212 has 12 divisors (see below), whose sum is σ = 21564222036. Its totient is φ = 5281033920.

The previous prime is 11442240209. The next prime is 11442240217. The reversal of 11442240212 is 21204224411.

It can be written as a sum of positive squares in 2 ways, for example, as 3249456016 + 8192784196 = 57004^2 + 90514^2 .

It is a super-2 number, since 2×11442240212² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11442240217) 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, 110021489 + ... + 110021592.

It is an arithmetic number, because the mean of its divisors is an integer number (1797018503).

Almost surely, 2^11442240212 is an apocalyptic number.

It is an amenable number.

11442240212 is a deficient number, since it is larger than the sum of its proper divisors (10121981824).

11442240212 is a wasteful number, since it uses less digits than its factorization.

11442240212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220043098 (or 220043096 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 11442240212 its reverse (21204224411), we get a palindrome (32646464623).

The spelling of 11442240212 in words is "eleven billion, four hundred forty-two million, two hundred forty thousand, two hundred twelve".