201002221220 has 48 divisors (see below), whose sum is σ = 443942166528. Its totient is φ = 76339236480.

The previous prime is 201002221213. The next prime is 201002221267. The reversal of 201002221220 is 22122200102.

It is a junction number, because it is equal to n+sod(n) for n = 201002221195 and 201002221204.

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, 3025604 + ... + 3091323.

It is an arithmetic number, because the mean of its divisors is an integer number (9248795136).

Almost surely, 2^201002221220 is an apocalyptic number.

201002221220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201002221220 is an abundant number, since it is smaller than the sum of its proper divisors (242939945308).

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

201002221220 is a wasteful number, since it uses less digits than its factorization.

201002221220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6117020 (or 6117018 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 201002221220 its reverse (22122200102), we get a palindrome (223124421322).

The spelling of 201002221220 in words is "two hundred one billion, two million, two hundred twenty-one thousand, two hundred twenty".