211101101110220 has 48 divisors (see below), whose sum is σ = 451867250207520. Its totient is φ = 82817539070976.

The previous prime is 211101101110219. The next prime is 211101101110247. The reversal of 211101101110220 is 22011101101112.

It is a junction number, because it is equal to n+sod(n) for n = 211101101110195 and 211101101110204.

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, 206070167 + ... + 207092046.

It is an arithmetic number, because the mean of its divisors is an integer number (9413901045990).

Almost surely, 2^{211101101110220} is an apocalyptic number.

211101101110220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211101101110220 is an abundant number, since it is smaller than the sum of its proper divisors (240766149097300).

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

211101101110220 is a wasteful number, since it uses less digits than its factorization.

211101101110220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413162714 (or 413162712 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 211101101110220 its reverse (22011101101112), we get a palindrome (233112202211332).

The spelling of 211101101110220 in words is "two hundred eleven trillion, one hundred one billion, one hundred one million, one hundred ten thousand, two hundred twenty".