2221211020312 has 16 divisors (see below), whose sum is σ = 4178984901840. Its totient is φ = 1106815046496.

The previous prime is 2221211020283. The next prime is 2221211020313. The reversal of 2221211020312 is 2130201121222.

It is a self number, because there is not a number n which added to its sum of digits gives 2221211020312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221211020313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 473805468 + ... + 473810155.

It is an arithmetic number, because the mean of its divisors is an integer number (261186556365).

Almost surely, 2^{2221211020312} is an apocalyptic number.

It is an amenable number.

2221211020312 is a deficient number, since it is larger than the sum of its proper divisors (1957773881528).

2221211020312 is a wasteful number, since it uses less digits than its factorization.

2221211020312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947615922 (or 947615918 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 2221211020312 its reverse (2130201121222), we get a palindrome (4351412141534).

The spelling of 2221211020312 in words is "two trillion, two hundred twenty-one billion, two hundred eleven million, twenty thousand, three hundred twelve".