2221211201112 has 48 divisors (see below), whose sum is σ = 6129285636240. Its totient is φ = 726433850688.

The previous prime is 2221211201087. The next prime is 2221211201113. The reversal of 2221211201112 is 2111021121222.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221211201113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 291035388 + ... + 291043019.

It is an arithmetic number, because the mean of its divisors is an integer number (127693450755).

Almost surely, 2^{2221211201112} is an apocalyptic number.

It is an amenable number.

2221211201112 is an abundant number, since it is smaller than the sum of its proper divisors (3908074435128).

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

2221211201112 is a wasteful number, since it uses less digits than its factorization.

2221211201112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582078472 (or 582078465 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 2221211201112 its reverse (2111021121222), we get a palindrome (4332232322334).

The spelling of 2221211201112 in words is "two trillion, two hundred twenty-one billion, two hundred eleven million, two hundred one thousand, one hundred twelve".