2211222220020 has 96 divisors (see below), whose sum is σ = 7504754221440. Its totient is φ = 536053870080.

The previous prime is 2211222220013. The next prime is 2211222220021. The reversal of 2211222220020 is 200222221122.

2211222220020 is a `hidden beast` number, since 221 + 1 + 2 + 222 + 200 + 20 = 666.

2211222220020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2211222219975 and 2211222220002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211222220021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 186123877 + ... + 186135756.

It is an arithmetic number, because the mean of its divisors is an integer number (78174523140).

Almost surely, 2^{2211222220020} is an apocalyptic number.

2211222220020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2211222220020 is an abundant number, since it is smaller than the sum of its proper divisors (5293532001420).

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

2211222220020 is a wasteful number, since it uses less digits than its factorization.

2211222220020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372259662 (or 372259654 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 2211222220020 its reverse (200222221122), we get a palindrome (2411444441142).

The spelling of 2211222220020 in words is "two trillion, two hundred eleven billion, two hundred twenty-two million, two hundred twenty thousand, twenty".