2211211110020 has 48 divisors (see below), whose sum is σ = 5161262597568. Its totient is φ = 788905503360.

The previous prime is 2211211109981. The next prime is 2211211110037. The reversal of 2211211110020 is 200111121122.

It is a junction number, because it is equal to n+sod(n) for n = 2211211109977 and 2211211110004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94808714 + ... + 94832033.

It is an arithmetic number, because the mean of its divisors is an integer number (107526304116).

Almost surely, 2^{2211211110020} is an apocalyptic number.

2211211110020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2211211110020 is an abundant number, since it is smaller than the sum of its proper divisors (2950051487548).

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

2211211110020 is a wasteful number, since it uses less digits than its factorization.

2211211110020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189640820 (or 189640818 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2211211110020 its reverse (200111121122), we get a palindrome (2411322231142).

The spelling of 2211211110020 in words is "two trillion, two hundred eleven billion, two hundred eleven million, one hundred ten thousand, twenty".