201230203021220 has 12 divisors (see below), whose sum is σ = 422583426344604. Its totient is φ = 80492081208480.

The previous prime is 201230203021219. The next prime is 201230203021261. The reversal of 201230203021220 is 22120302032102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 160515926182144 + 40714276839076 = 12669488^2 + 6380774^2 .

It is a super-2 number, since 2×201230203021220² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 10061510151061 = 201230203021220 / (2 + 0 + 1 + 2 + 3 + 0 + 2 + 0 + 3 + 0 + 2 + 1 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 201230203021192 and 201230203021201.

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 3 ways as a sum of consecutive naturals, for example, 5030755075511 + ... + 5030755075550.

It is an arithmetic number, because the mean of its divisors is an integer number (35215285528717).

Almost surely, 2^{201230203021220} is an apocalyptic number.

201230203021220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201230203021220 is an abundant number, since it is smaller than the sum of its proper divisors (221353223323384).

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

201230203021220 is a wasteful number, since it uses less digits than its factorization.

201230203021220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10061510151070 (or 10061510151068 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 201230203021220 its reverse (22120302032102), we get a palindrome (223350505053322).

The spelling of 201230203021220 in words is "two hundred one trillion, two hundred thirty billion, two hundred three million, twenty-one thousand, two hundred twenty".