201011102101220 has 24 divisors (see below), whose sum is σ = 423375905864184. Its totient is φ = 80165851992576.

The previous prime is 201011102101211. The next prime is 201011102101223. The reversal of 201011102101220 is 22101201110102.

It can be written as a sum of positive squares in 4 ways, for example, as 15850638213796 + 185160463887424 = 3981286^2 + 13607368^2 .

It is a junction number, because it is equal to n+sod(n) for n = 201011102101195 and 201011102101204.

It is not an unprimeable number, because it can be changed into a prime (201011102101223) 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, 14911796087 + ... + 14911809566.

It is an arithmetic number, because the mean of its divisors is an integer number (17640662744341).

Almost surely, 2^{201011102101220} is an apocalyptic number.

201011102101220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201011102101220 is an abundant number, since it is smaller than the sum of its proper divisors (222364803762964).

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

201011102101220 is a wasteful number, since it uses less digits than its factorization.

201011102101220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29823605999 (or 29823605997 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 201011102101220 its reverse (22101201110102), we get a palindrome (223112303211322).

The spelling of 201011102101220 in words is "two hundred one trillion, eleven billion, one hundred two million, one hundred one thousand, two hundred twenty".