201010102221220 has 24 divisors (see below), whose sum is σ = 422129738076984. Its totient is φ = 80402417381376.

The previous prime is 201010102221197. The next prime is 201010102221289. The reversal of 201010102221220 is 22122201010102.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 79359305491456 + 121650796729764 = 8908384^2 + 11029542^2 .

It is a super-2 number, since 2×201010102221220² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201010102221194 and 201010102221203.

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, 100453687 + ... + 102435166.

It is an arithmetic number, because the mean of its divisors is an integer number (17588739086541).

Almost surely, 2^{201010102221220} is an apocalyptic number.

201010102221220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201010102221220 is an abundant number, since it is smaller than the sum of its proper divisors (221119635855764).

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

201010102221220 is a wasteful number, since it uses less digits than its factorization.

201010102221220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202938399 (or 202938397 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 201010102221220 its reverse (22122201010102), we get a palindrome (223132303231322).

The spelling of 201010102221220 in words is "two hundred one trillion, ten billion, one hundred two million, two hundred twenty-one thousand, two hundred twenty".