211110222020 has 12 divisors (see below), whose sum is σ = 443331466284. Its totient is φ = 84444088800.

The previous prime is 211110222017. The next prime is 211110222031. The reversal of 211110222020 is 20222011112.

It can be written as a sum of positive squares in 2 ways, for example, as 22399911556 + 188710310464 = 149666^2 + 434408^2 .

It is a junction number, because it is equal to n+sod(n) for n = 211110221986 and 211110222004.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5277755531 + ... + 5277755570.

It is an arithmetic number, because the mean of its divisors is an integer number (36944288857).

Almost surely, 2^211110222020 is an apocalyptic number.

211110222020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211110222020 is an abundant number, since it is smaller than the sum of its proper divisors (232221244264).

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

211110222020 is a wasteful number, since it uses less digits than its factorization.

211110222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10555511110 (or 10555511108 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 211110222020 its reverse (20222011112), we get a palindrome (231332233132).

The spelling of 211110222020 in words is "two hundred eleven billion, one hundred ten million, two hundred twenty-two thousand, twenty".