1222212002002 has 8 divisors (see below), whose sum is σ = 1833324388812. Its totient is φ = 611103872400.

The previous prime is 1222212001991. The next prime is 1222212002017. The reversal of 1222212002002 is 2002002122221.

It can be written as a sum of positive squares in 2 ways, for example, as 1178894321361 + 43317680641 = 1085769^2 + 208129^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209149 + ... + 1577392.

Almost surely, 2^{1222212002002} is an apocalyptic number.

1222212002002 is a deficient number, since it is larger than the sum of its proper divisors (611112386810).

1222212002002 is a wasteful number, since it uses less digits than its factorization.

1222212002002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2128604.

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

Adding to 1222212002002 its reverse (2002002122221), we get a palindrome (3224214124223).

It can be divided in two parts, 122221 and 2002002, that multiplied together give a palindrome (244686686442).

The spelling of 1222212002002 in words is "one trillion, two hundred twenty-two billion, two hundred twelve million, two thousand, two".