1220002111222 has 8 divisors (see below), whose sum is σ = 1893106724400. Its totient is φ = 588966536424.

The previous prime is 1220002111201. The next prime is 1220002111243. The reversal of 1220002111222 is 2221112000221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1220002111201) and next prime (1220002111243).

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

It is a super-2 number, since 2×1220002111222² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1220002111196 and 1220002111205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10517259522 + ... + 10517259637.

It is an arithmetic number, because the mean of its divisors is an integer number (236638340550).

Almost surely, 2^{1220002111222} is an apocalyptic number.

1220002111222 is a deficient number, since it is larger than the sum of its proper divisors (673104613178).

1220002111222 is a wasteful number, since it uses less digits than its factorization.

1220002111222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21034519190.

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

Adding to 1220002111222 its reverse (2221112000221), we get a palindrome (3441114111443).

The spelling of 1220002111222 in words is "one trillion, two hundred twenty billion, two million, one hundred eleven thousand, two hundred twenty-two".