22111212012152 has 16 divisors (see below), whose sum is σ = 41458580534400. Its totient is φ = 11055590536320.

The previous prime is 22111212012151. The next prime is 22111212012167. The reversal of 22111212012152 is 25121021211122.

It is a super-2 number, since 2×22111212012152² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22111212012151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6108224 + ... + 9029552.

It is an arithmetic number, because the mean of its divisors is an integer number (2591161283400).

Almost surely, 2^{22111212012152} is an apocalyptic number.

It is an amenable number.

22111212012152 is a deficient number, since it is larger than the sum of its proper divisors (19347368522248).

22111212012152 is a wasteful number, since it uses less digits than its factorization.

22111212012152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3867446 (or 3867442 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 23.

Adding to 22111212012152 its reverse (25121021211122), we get a palindrome (47232233223274).

The spelling of 22111212012152 in words is "twenty-two trillion, one hundred eleven billion, two hundred twelve million, twelve thousand, one hundred fifty-two".