2221120002012 has 24 divisors (see below), whose sum is σ = 5197548832896. Its totient is φ = 738239691888.

The previous prime is 2221120002007. The next prime is 2221120002019. The reversal of 2221120002012 is 2102000211222.

It is a junction number, because it is equal to n+sod(n) for n = 2221120001982 and 2221120002000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221120002019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 266700928 + ... + 266709255.

It is an arithmetic number, because the mean of its divisors is an integer number (216564534704).

Almost surely, 2^{2221120002012} is an apocalyptic number.

It is an amenable number.

2221120002012 is an abundant number, since it is smaller than the sum of its proper divisors (2976428830884).

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

2221120002012 is a wasteful number, since it uses less digits than its factorization.

2221120002012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533410537 (or 533410535 counting only the distinct ones).

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

Adding to 2221120002012 its reverse (2102000211222), we get a palindrome (4323120213234).

The spelling of 2221120002012 in words is "two trillion, two hundred twenty-one billion, one hundred twenty million, two thousand, twelve".