1220222220103 has 6 divisors (see below), whose sum is σ = 1231519635024. Its totient is φ = 1209027509064.

The previous prime is 1220222220089. The next prime is 1220222220137. The reversal of 1220222220103 is 3010222220221.

It is a de Polignac number, because none of the positive numbers 2^k-1220222220103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220222220143) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51339951 + ... + 51363712.

It is an arithmetic number, because the mean of its divisors is an integer number (205253272504).

Almost surely, 2^{1220222220103} is an apocalyptic number.

1220222220103 is a deficient number, since it is larger than the sum of its proper divisors (11297414921).

1220222220103 is an equidigital number, since it uses as much as digits as its factorization.

1220222220103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102703881 (or 102703772 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 1220222220103 its reverse (3010222220221), we get a palindrome (4230444440324).

The spelling of 1220222220103 in words is "one trillion, two hundred twenty billion, two hundred twenty-two million, two hundred twenty thousand, one hundred three".