201111220102 has 32 divisors (see below), whose sum is σ = 342110855520. Its totient is φ = 87899178240.

The previous prime is 201111219983. The next prime is 201111220129. The reversal of 201111220102 is 201022111102.

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 15 ways as a sum of consecutive naturals, for example, 1139352 + ... + 1303972.

It is an arithmetic number, because the mean of its divisors is an integer number (10690964235).

Almost surely, 2^201111220102 is an apocalyptic number.

201111220102 is a deficient number, since it is larger than the sum of its proper divisors (140999635418).

201111220102 is a wasteful number, since it uses less digits than its factorization.

201111220102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167128.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 201111220102 its reverse (201022111102), we get a palindrome (402133331204).

The spelling of 201111220102 in words is "two hundred one billion, one hundred eleven million, two hundred twenty thousand, one hundred two".