22100322120012 has 72 divisors (see below), whose sum is σ = 59153984089200. Its totient is φ = 6933068448768.

The previous prime is 22100322120011. The next prime is 22100322120013. The reversal of 22100322120012 is 21002122300122.

22100322120012 is a `hidden beast` number, since 2 + 210 + 0 + 322 + 120 + 0 + 12 = 666.

It is an interprime number because it is at equal distance from previous prime (22100322120011) and next prime (22100322120013).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (22100322120011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10769664 + ... + 12656472.

It is an arithmetic number, because the mean of its divisors is an integer number (821583112350).

Almost surely, 2^{22100322120012} is an apocalyptic number.

It is an amenable number.

22100322120012 is an abundant number, since it is smaller than the sum of its proper divisors (37053661969188).

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

22100322120012 is a wasteful number, since it uses less digits than its factorization.

22100322120012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1905975 (or 1905970 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 22100322120012 its reverse (21002122300122), we get a palindrome (43102444420134).

The spelling of 22100322120012 in words is "twenty-two trillion, one hundred billion, three hundred twenty-two million, one hundred twenty thousand, twelve".