1220221110022 has 16 divisors (see below), whose sum is σ = 1854964446192. Its totient is φ = 601953470560.

The previous prime is 1220221110013. The next prime is 1220221110041. The reversal of 1220221110022 is 2200111220221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1220221109978 and 1220221110005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13415173 + ... + 13505824.

It is an arithmetic number, because the mean of its divisors is an integer number (115935277887).

Almost surely, 2^{1220221110022} is an apocalyptic number.

1220221110022 is a deficient number, since it is larger than the sum of its proper divisors (634743336170).

1220221110022 is a wasteful number, since it uses less digits than its factorization.

1220221110022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26921303.

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

Adding to 1220221110022 its reverse (2200111220221), we get a palindrome (3420332330243).

The spelling of 1220221110022 in words is "one trillion, two hundred twenty billion, two hundred twenty-one million, one hundred ten thousand, twenty-two".