2220021406066 has 16 divisors (see below), whose sum is σ = 3358960819200. Its totient is φ = 1100409454368.

The previous prime is 2220021406063. The next prime is 2220021406069. The reversal of 2220021406066 is 6606041200222.

It is an interprime number because it is at equal distance from previous prime (2220021406063) and next prime (2220021406069).

It is not an unprimeable number, because it can be changed into a prime (2220021406063) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 10306851 + ... + 10520038.

It is an arithmetic number, because the mean of its divisors is an integer number (209935051200).

Almost surely, 2^{2220021406066} is an apocalyptic number.

2220021406066 is a deficient number, since it is larger than the sum of its proper divisors (1138939413134).

2220021406066 is a wasteful number, since it uses less digits than its factorization.

2220021406066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20827353.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 2220021406066 its reverse (6606041200222), we get a palindrome (8826062606288).

The spelling of 2220021406066 in words is "two trillion, two hundred twenty billion, twenty-one million, four hundred six thousand, sixty-six".