10212221021012 has 12 divisors (see below), whose sum is σ = 18116200304916. Its totient is φ = 5036163791040.

The previous prime is 10212221020921. The next prime is 10212221021071. The reversal of 10212221021012 is 21012012221201.

It can be written as a sum of positive squares in 2 ways, for example, as 2092206030916 + 8120014990096 = 1446446^2 + 2849564^2 .

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, 17486679539 + ... + 17486680122.

It is an arithmetic number, because the mean of its divisors is an integer number (1509683358743).

Almost surely, 2^{10212221021012} is an apocalyptic number.

It is an amenable number.

10212221021012 is a deficient number, since it is larger than the sum of its proper divisors (7903979283904).

10212221021012 is a wasteful number, since it uses less digits than its factorization.

10212221021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34973359738 (or 34973359736 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 10212221021012 its reverse (21012012221201), we get a palindrome (31224233242213).

The spelling of 10212221021012 in words is "ten trillion, two hundred twelve billion, two hundred twenty-one million, twenty-one thousand, twelve".