22020121202112 has 168 divisors, whose sum is σ = 69003306727680. Its totient is φ = 6658351096320.

The previous prime is 22020121202099. The next prime is 22020121202129. The reversal of 22020121202112 is 21120212102022.

It is a happy number.

22020121202112 is a `hidden beast` number, since 220 + 20 + 1 + 212 + 0 + 211 + 2 = 666.

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

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 819562 + ... + 6686697.

Almost surely, 2^{22020121202112} is an apocalyptic number.

22020121202112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22020121202112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34501653363840).

22020121202112 is an abundant number, since it is smaller than the sum of its proper divisors (46983185525568).

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

22020121202112 is a wasteful number, since it uses less digits than its factorization.

22020121202112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7506751 (or 7506738 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 22020121202112 its reverse (21120212102022), we get a palindrome (43140333304134).

The spelling of 22020121202112 in words is "twenty-two trillion, twenty billion, one hundred twenty-one million, two hundred two thousand, one hundred twelve".