201220220110 has 128 divisors (see below), whose sum is σ = 452807147520. Its totient is φ = 63059637888.

The previous prime is 201220220101. The next prime is 201220220141. The reversal of 201220220110 is 11022022102.

It is a happy number.

It is a super-3 number, since 3×201220220110³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15834019 + ... + 15846721.

It is an arithmetic number, because the mean of its divisors is an integer number (3537555840).

Almost surely, 2^201220220110 is an apocalyptic number.

201220220110 is an abundant number, since it is smaller than the sum of its proper divisors (251586927410).

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

201220220110 is a wasteful number, since it uses less digits than its factorization.

201220220110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12859 (or 12833 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 201220220110 its reverse (11022022102), we get a palindrome (212242242212).

The spelling of 201220220110 in words is "two hundred one billion, two hundred twenty million, two hundred twenty thousand, one hundred ten".