1212212220002 has 32 divisors (see below), whose sum is σ = 2232092496000. Its totient is φ = 492176384784.

The previous prime is 1212212219927. The next prime is 1212212220017. The reversal of 1212212220002 is 2000222122121.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46488893 + ... + 46514960.

It is an arithmetic number, because the mean of its divisors is an integer number (69752890500).

Almost surely, 2^{1212212220002} is an apocalyptic number.

1212212220002 is a deficient number, since it is larger than the sum of its proper divisors (1019880275998).

1212212220002 is an equidigital number, since it uses as much as digits as its factorization.

1212212220002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93003895 (or 93003881 counting only the distinct ones).

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

Adding to 1212212220002 its reverse (2000222122121), we get a palindrome (3212434342123).

The spelling of 1212212220002 in words is "one trillion, two hundred twelve billion, two hundred twelve million, two hundred twenty thousand, two".