2221021020012 has 48 divisors (see below), whose sum is σ = 5270664537600. Its totient is φ = 727730723520.

The previous prime is 2221021020007. The next prime is 2221021020017. The reversal of 2221021020012 is 2100201201222.

It is an interprime number because it is at equal distance from previous prime (2221021020007) and next prime (2221021020017).

It is a junction number, because it is equal to n+sod(n) for n = 2221021019973 and 2221021020000.

It is not an unprimeable number, because it can be changed into a prime (2221021020017) 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, 8667789 + ... + 8920347.

It is an arithmetic number, because the mean of its divisors is an integer number (109805511200).

Almost surely, 2^{2221021020012} is an apocalyptic number.

It is an amenable number.

2221021020012 is an abundant number, since it is smaller than the sum of its proper divisors (3049643517588).

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

2221021020012 is a wasteful number, since it uses less digits than its factorization.

2221021020012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265046 (or 265044 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 2221021020012 its reverse (2100201201222), we get a palindrome (4321222221234).

The spelling of 2221021020012 in words is "two trillion, two hundred twenty-one billion, twenty-one million, twenty thousand, twelve".