2221000020212 has 12 divisors (see below), whose sum is σ = 3892491177540. Its totient is φ = 1108859683776.

The previous prime is 2221000020209. The next prime is 2221000020229. The reversal of 2221000020212 is 2120200001222.

It can be written as a sum of positive squares in 2 ways, for example, as 1698554397796 + 522445622416 = 1303286^2 + 722804^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 410078537 + ... + 410083952.

It is an arithmetic number, because the mean of its divisors is an integer number (324374264795).

Almost surely, 2^{2221000020212} is an apocalyptic number.

It is an amenable number.

2221000020212 is a deficient number, since it is larger than the sum of its proper divisors (1671491157328).

2221000020212 is a wasteful number, since it uses less digits than its factorization.

2221000020212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820163170 (or 820163168 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 2221000020212 its reverse (2120200001222), we get a palindrome (4341200021434).

The spelling of 2221000020212 in words is "two trillion, two hundred twenty-one billion, twenty thousand, two hundred twelve".