201001203031220 has 24 divisors (see below), whose sum is σ = 427188098975904. Its totient is φ = 79431800715296.

The previous prime is 201001203031159. The next prime is 201001203031229. The reversal of 201001203031220 is 22130302100102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201001203031229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60542529374 + ... + 60542532693.

It is an arithmetic number, because the mean of its divisors is an integer number (17799504123996).

Almost surely, 2^{201001203031220} is an apocalyptic number.

201001203031220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201001203031220 is an abundant number, since it is smaller than the sum of its proper divisors (226186895944684).

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

201001203031220 is a wasteful number, since it uses less digits than its factorization.

201001203031220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121085062159 (or 121085062157 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 201001203031220 its reverse (22130302100102), we get a palindrome (223131505131322).

The spelling of 201001203031220 in words is "two hundred one trillion, one billion, two hundred three million, thirty-one thousand, two hundred twenty".