201333031220 has 48 divisors (see below), whose sum is σ = 427626716160. Its totient is φ = 79615540224.

The previous prime is 201333031201. The next prime is 201333031243. The reversal of 201333031220 is 22130333102.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 201333031192 and 201333031201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1726397 + ... + 1839323.

It is an arithmetic number, because the mean of its divisors is an integer number (8908889920).

Almost surely, 2^201333031220 is an apocalyptic number.

201333031220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201333031220 is an abundant number, since it is smaller than the sum of its proper divisors (226293684940).

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

201333031220 is a wasteful number, since it uses less digits than its factorization.

201333031220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113952 (or 113950 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 201333031220 its reverse (22130333102), we get a palindrome (223463364322).

The spelling of 201333031220 in words is "two hundred one billion, three hundred thirty-three million, thirty-one thousand, two hundred twenty".