2221111130220 has 144 divisors (see below), whose sum is σ = 7030912674240. Its totient is φ = 566494883328.

The previous prime is 2221111130201. The next prime is 2221111130237. The reversal of 2221111130220 is 220311111222.

2221111130220 is a `hidden beast` number, since 22 + 211 + 111 + 302 + 20 = 666.

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 = 2221111130193 and 2221111130202.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 83271046 + ... + 83297714.

It is an arithmetic number, because the mean of its divisors is an integer number (48825782460).

Almost surely, 2^{2221111130220} is an apocalyptic number.

2221111130220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221111130220 is an abundant number, since it is smaller than the sum of its proper divisors (4809801544020).

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

2221111130220 is a wasteful number, since it uses less digits than its factorization.

2221111130220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46824 (or 46819 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 2221111130220 its reverse (220311111222), we get a palindrome (2441422241442).

The spelling of 2221111130220 in words is "two trillion, two hundred twenty-one billion, one hundred eleven million, one hundred thirty thousand, two hundred twenty".