201202021021220 has 24 divisors (see below), whose sum is σ = 422524851147000. Its totient is φ = 80480692788992.

The previous prime is 201202021021217. The next prime is 201202021021247. The reversal of 201202021021220 is 22120120202102.

It is a happy number.

201202021021220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 31345486479616 + 169856534541604 = 5598704^2 + 13032902^2 .

It is a super-3 number, since 3×201202021021220³ (a number of 44 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7806206 + ... + 21525354.

It is an arithmetic number, because the mean of its divisors is an integer number (17605202131125).

Almost surely, 2^{201202021021220} is an apocalyptic number.

201202021021220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201202021021220 is an abundant number, since it is smaller than the sum of its proper divisors (221322830125780).

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

201202021021220 is a wasteful number, since it uses less digits than its factorization.

201202021021220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14452447 (or 14452445 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 201202021021220 its reverse (22120120202102), we get a palindrome (223322141223322).

The spelling of 201202021021220 in words is "two hundred one trillion, two hundred two billion, twenty-one million, twenty-one thousand, two hundred twenty".