10012220111121 has 16 divisors (see below), whose sum is σ = 13828646222400. Its totient is φ = 6435926618688.

The previous prime is 10012220111119. The next prime is 10012220111129. The reversal of 10012220111121 is 12111102221001.

It is a happy number.

It is not a de Polignac number, because 10012220111121 - 2¹ = 10012220111119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10012220111121.

It is not an unprimeable number, because it can be changed into a prime (10012220111129) 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, 77799706 + ... + 77928291.

It is an arithmetic number, because the mean of its divisors is an integer number (864290388900).

Almost surely, 2^{10012220111121} is an apocalyptic number.

It is an amenable number.

10012220111121 is a deficient number, since it is larger than the sum of its proper divisors (3816426111279).

10012220111121 is a wasteful number, since it uses less digits than its factorization.

10012220111121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155728768.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 10012220111121 its reverse (12111102221001), we get a palindrome (22123322332122).

The spelling of 10012220111121 in words is "ten trillion, twelve billion, two hundred twenty million, one hundred eleven thousand, one hundred twenty-one".