2221001212012 has 24 divisors (see below), whose sum is σ = 4243979742912. Its totient is φ = 1008620643600.

The previous prime is 2221001211973. The next prime is 2221001212049. The reversal of 2221001212012 is 2102121001222.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23085498 + ... + 23181505.

It is an arithmetic number, because the mean of its divisors is an integer number (176832489288).

Almost surely, 2^{2221001212012} is an apocalyptic number.

2221001212012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2221001212012 is a deficient number, since it is larger than the sum of its proper divisors (2022978530900).

2221001212012 is a wasteful number, since it uses less digits than its factorization.

2221001212012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46268109 (or 46268107 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2221001212012 its reverse (2102121001222), we get a palindrome (4323122213234).

The spelling of 2221001212012 in words is "two trillion, two hundred twenty-one billion, one million, two hundred twelve thousand, twelve".