2221201331012 has 6 divisors (see below), whose sum is σ = 3887102329278. Its totient is φ = 1110600665504.

The previous prime is 2221201331003. The next prime is 2221201331021. The reversal of 2221201331012 is 2101331021222.

It is an interprime number because it is at equal distance from previous prime (2221201331003) and next prime (2221201331021).

It can be written as a sum of positive squares in only one way, i.e., 2073179541316 + 148021789696 = 1439854^2 + 384736^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277650166373 + ... + 277650166380.

It is an arithmetic number, because the mean of its divisors is an integer number (647850388213).

Almost surely, 2^{2221201331012} is an apocalyptic number.

It is an amenable number.

2221201331012 is a deficient number, since it is larger than the sum of its proper divisors (1665900998266).

2221201331012 is a wasteful number, since it uses less digits than its factorization.

2221201331012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555300332757 (or 555300332755 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 2221201331012 its reverse (2101331021222), we get a palindrome (4322532352234).

The spelling of 2221201331012 in words is "two trillion, two hundred twenty-one billion, two hundred one million, three hundred thirty-one thousand, twelve".