201012220220220 has 144 divisors (see below), whose sum is σ = 611371198226880. Its totient is φ = 53459788935168.

The previous prime is 201012220220213. The next prime is 201012220220237. The reversal of 201012220220220 is 22022022210102.

201012220220220 is a `hidden beast` number, since 2 + 0 + 1 + 0 + 1 + 2 + 220 + 220 + 220 = 666.

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 = 201012220220193 and 201012220220202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 100647582 + ... + 102625338.

It is an arithmetic number, because the mean of its divisors is an integer number (4245633321020).

Almost surely, 2^{201012220220220} is an apocalyptic number.

201012220220220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201012220220220 is an abundant number, since it is smaller than the sum of its proper divisors (410358978006660).

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

201012220220220 is a wasteful number, since it uses less digits than its factorization.

201012220220220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1979284 (or 1979279 counting only the distinct ones).

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

Adding to 201012220220220 its reverse (22022022210102), we get a palindrome (223034242430322).

The spelling of 201012220220220 in words is "two hundred one trillion, twelve billion, two hundred twenty million, two hundred twenty thousand, two hundred twenty".