212220002120002 has 16 divisors (see below), whose sum is σ = 321487710220152. Its totient is φ = 105057470771200.

The previous prime is 212220002119981. The next prime is 212220002120033. The reversal of 212220002120002 is 200021200022212.

It can be written as a sum of positive squares in 4 ways, for example, as 195488801756361 + 16731200363641 = 13981731^2 + 4090379^2 .

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 7 ways as a sum of consecutive naturals, for example, 1337538 + ... + 20645314.

Almost surely, 2^{212220002120002} is an apocalyptic number.

212220002120002 is a deficient number, since it is larger than the sum of its proper divisors (109267708100150).

212220002120002 is a wasteful number, since it uses less digits than its factorization.

212220002120002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19362293.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 212220002120002 its reverse (200021200022212), we get a palindrome (412241202142214).

The spelling of 212220002120002 in words is "two hundred twelve trillion, two hundred twenty billion, two million, one hundred twenty thousand, two".