22121341440012 has 36 divisors (see below), whose sum is σ = 55993094910480. Its totient is φ = 7363856136672.

The previous prime is 22121341439963. The next prime is 22121341440017. The reversal of 22121341440012 is 21004414312122.

22121341440012 is a `hidden beast` number, since 2 + 2 + 1 + 213 + 4 + 1 + 440 + 0 + 1 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (22121341440017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 413487187 + ... + 413540682.

Almost surely, 2^{22121341440012} is an apocalyptic number.

It is an amenable number.

22121341440012 is an abundant number, since it is smaller than the sum of its proper divisors (33871753470468).

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

22121341440012 is a wasteful number, since it uses less digits than its factorization.

22121341440012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827028622 (or 827028617 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 22121341440012 its reverse (21004414312122), we get a palindrome (43125755752134).

The spelling of 22121341440012 in words is "twenty-two trillion, one hundred twenty-one billion, three hundred forty-one million, four hundred forty thousand, twelve".