16111122210220 has 24 divisors (see below), whose sum is σ = 34553215295424. Its totient is φ = 6307332950016.

The previous prime is 16111122210107. The next prime is 16111122210233. The reversal of 16111122210220 is 2201222111161.

It is a junction number, because it is equal to n+sod(n) for n = 16111122210191 and 16111122210200.

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, 8569744917 + ... + 8569746796.

It is an arithmetic number, because the mean of its divisors is an integer number (1439717303976).

Almost surely, 2^{16111122210220} is an apocalyptic number.

16111122210220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16111122210220 is an abundant number, since it is smaller than the sum of its proper divisors (18442093085204).

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

16111122210220 is a wasteful number, since it uses less digits than its factorization.

16111122210220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17139491769 (or 17139491767 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 22.

Adding to 16111122210220 its reverse (2201222111161), we get a palindrome (18312344321381).

The spelling of 16111122210220 in words is "sixteen trillion, one hundred eleven billion, one hundred twenty-two million, two hundred ten thousand, two hundred twenty".