2221011201066 has 32 divisors (see below), whose sum is σ = 5078852510208. Its totient is φ = 634292694000.

The previous prime is 2221011201047. The next prime is 2221011201067. The reversal of 2221011201066 is 6601021101222.

It is not an unprimeable number, because it can be changed into a prime (2221011201067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11651620 + ... + 11840703.

It is an arithmetic number, because the mean of its divisors is an integer number (158714140944).

Almost surely, 2^{2221011201066} is an apocalyptic number.

2221011201066 is an abundant number, since it is smaller than the sum of its proper divisors (2857841309142).

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

2221011201066 is a wasteful number, since it uses less digits than its factorization.

2221011201066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23494586.

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 2221011201066 its reverse (6601021101222), we get a palindrome (8822032302288).

The spelling of 2221011201066 in words is "two trillion, two hundred twenty-one billion, eleven million, two hundred one thousand, sixty-six".