201341221220 has 48 divisors (see below), whose sum is σ = 464420960640. Its totient is φ = 72980430336.

The previous prime is 201341221219. The next prime is 201341221223. The reversal of 201341221220 is 22122143102.

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 = 201341221192 and 201341221201.

It is not an unprimeable number, because it can be changed into a prime (201341221223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11509637 + ... + 11527116.

It is an arithmetic number, because the mean of its divisors is an integer number (9675436680).

Almost surely, 2^201341221220 is an apocalyptic number.

201341221220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201341221220 is an abundant number, since it is smaller than the sum of its proper divisors (263079739420).

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

201341221220 is a wasteful number, since it uses less digits than its factorization.

201341221220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23036804 (or 23036802 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 201341221220 its reverse (22122143102), we get a palindrome (223463364322).

The spelling of 201341221220 in words is "two hundred one billion, three hundred forty-one million, two hundred twenty-one thousand, two hundred twenty".