2221212200012 has 48 divisors (see below), whose sum is σ = 4323242246400. Its totient is φ = 991628282880.

The previous prime is 2221212199963. The next prime is 2221212200023. The reversal of 2221212200012 is 2100022121222.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3037664 + ... + 3697272.

It is an arithmetic number, because the mean of its divisors is an integer number (90067546800).

Almost surely, 2^{2221212200012} is an apocalyptic number.

It is an amenable number.

2221212200012 is a deficient number, since it is larger than the sum of its proper divisors (2102030046388).

2221212200012 is a wasteful number, since it uses less digits than its factorization.

2221212200012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661746 (or 661744 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2221212200012 its reverse (2100022121222), we get a palindrome (4321234321234).

The spelling of 2221212200012 in words is "two trillion, two hundred twenty-one billion, two hundred twelve million, two hundred thousand, twelve".