22310021201220 has 72 divisors (see below), whose sum is σ = 68272613614296. Its totient is φ = 5896689964032.

The previous prime is 22310021201183. The next prime is 22310021201261. The reversal of 22310021201220 is 2210212001322.

22310021201220 is a `hidden beast` number, since 2 + 231 + 0 + 0 + 212 + 0 + 1 + 220 = 666.

22310021201220 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 968503983876 + 21341517217344 = 984126^2 + 4619688^2 .

It is a super-3 number, since 3×22310021201220³ (a number of 41 digits) contains 333 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 22310021201193 and 22310021201202.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 548406927 + ... + 548447606.

It is an arithmetic number, because the mean of its divisors is an integer number (948230744643).

Almost surely, 2^{22310021201220} is an apocalyptic number.

22310021201220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22310021201220 is an abundant number, since it is smaller than the sum of its proper divisors (45962592413076).

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

22310021201220 is a wasteful number, since it uses less digits than its factorization.

22310021201220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096854661 (or 1096854656 counting only the distinct ones).

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

Adding to 22310021201220 its reverse (2210212001322), we get a palindrome (24520233202542).

The spelling of 22310021201220 in words is "twenty-two trillion, three hundred ten billion, twenty-one million, two hundred one thousand, two hundred twenty".