22110221121012 has 48 divisors (see below), whose sum is σ = 58030484355200. Its totient is φ = 7370073704088.

The previous prime is 22110221120993. The next prime is 22110221121019. The reversal of 22110221121012 is 21012112201122.

22110221121012 is a `hidden beast` number, since 221 + 1 + 0 + 221 + 1 + 210 + 12 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22110221121019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1263721312 + ... + 1263738807.

Almost surely, 2^{22110221121012} is an apocalyptic number.

It is an amenable number.

22110221121012 is an abundant number, since it is smaller than the sum of its proper divisors (35920263234188).

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

22110221121012 is an equidigital number, since it uses as much as digits as its factorization.

22110221121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2527460144 (or 2527460124 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 22110221121012 its reverse (21012112201122), we get a palindrome (43122333322134).

The spelling of 22110221121012 in words is "twenty-two trillion, one hundred ten billion, two hundred twenty-one million, one hundred twenty-one thousand, twelve".