201222200012220 has 36 divisors (see below), whose sum is σ = 610374006704280. Its totient is φ = 53659253336544.

The previous prime is 201222200012167. The next prime is 201222200012311. The reversal of 201222200012220 is 22210002222102.

201222200012220 is a `hidden beast` number, since 20 + 1 + 222 + 200 + 0 + 1 + 2 + 220 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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 = 201222200012193 and 201222200012202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 558950555410 + ... + 558950555769.

Almost surely, 2^{201222200012220} is an apocalyptic number.

201222200012220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201222200012220 is an abundant number, since it is smaller than the sum of its proper divisors (409151806692060).

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

201222200012220 is a wasteful number, since it uses less digits than its factorization.

201222200012220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1117901111194 (or 1117901111189 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 201222200012220 its reverse (22210002222102), we get a palindrome (223432202234322).

The spelling of 201222200012220 in words is "two hundred one trillion, two hundred twenty-two billion, two hundred million, twelve thousand, two hundred twenty".