12122240440402 has 16 divisors (see below), whose sum is σ = 19257805294560. Its totient is φ = 5706886197312.

The previous prime is 12122240440367. The next prime is 12122240440403. The reversal of 12122240440402 is 20404404222121.

It is a happy number.

12122240440402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12122240440403) 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, 978540823 + ... + 978553210.

It is an arithmetic number, because the mean of its divisors is an integer number (1203612830910).

Almost surely, 2^{12122240440402} is an apocalyptic number.

12122240440402 is a deficient number, since it is larger than the sum of its proper divisors (7135564854158).

12122240440402 is a wasteful number, since it uses less digits than its factorization.

12122240440402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1957094217.

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 12122240440402 its reverse (20404404222121), we get a palindrome (32526644662523).

The spelling of 12122240440402 in words is "twelve trillion, one hundred twenty-two billion, two hundred forty million, four hundred forty thousand, four hundred two".