10012220011221 has 16 divisors (see below), whose sum is σ = 14159507619840. Its totient is φ = 6275236322160.

The previous prime is 10012220011153. The next prime is 10012220011231. The reversal of 10012220011221 is 12211002221001.

It is not a de Polignac number, because 10012220011221 - 2¹⁹ = 10012219486933 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10012220011221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10012220011231) 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, 670423765 + ... + 670438698.

It is an arithmetic number, because the mean of its divisors is an integer number (884969226240).

Almost surely, 2^{10012220011221} is an apocalyptic number.

It is an amenable number.

10012220011221 is a deficient number, since it is larger than the sum of its proper divisors (4147287608619).

10012220011221 is a wasteful number, since it uses less digits than its factorization.

10012220011221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340862616.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 10012220011221 its reverse (12211002221001), we get a palindrome (22223222232222).

The spelling of 10012220011221 in words is "ten trillion, twelve billion, two hundred twenty million, eleven thousand, two hundred twenty-one".