16201220111102 has 24 divisors (see below), whose sum is σ = 26323654602960. Its totient is φ = 7475026840320.

The previous prime is 16201220111101. The next prime is 16201220111129. The reversal of 16201220111102 is 20111102210261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16201220111101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6853202 + ... + 8908917.

It is an arithmetic number, because the mean of its divisors is an integer number (1096818941790).

Almost surely, 2^{16201220111102} is an apocalyptic number.

16201220111102 is a deficient number, since it is larger than the sum of its proper divisors (10122434491858).

16201220111102 is a wasteful number, since it uses less digits than its factorization.

16201220111102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15765188 (or 15765175 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 16201220111102 its reverse (20111102210261), we get a palindrome (36312322321363).

The spelling of 16201220111102 in words is "sixteen trillion, two hundred one billion, two hundred twenty million, one hundred eleven thousand, one hundred two".