1220110221112 has 24 divisors (see below), whose sum is σ = 2313700169400. Its totient is φ = 603200527424.

The previous prime is 1220110221097. The next prime is 1220110221137. The reversal of 1220110221112 is 2111220110221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9563812 + ... + 9690547.

It is an arithmetic number, because the mean of its divisors is an integer number (96404173725).

Almost surely, 2^{1220110221112} is an apocalyptic number.

It is an amenable number.

1220110221112 is a deficient number, since it is larger than the sum of its proper divisors (1093589948288).

1220110221112 is an equidigital number, since it uses as much as digits as its factorization.

1220110221112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19254543 (or 19254450 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1220110221112 its reverse (2111220110221), we get a palindrome (3331330331333).

The spelling of 1220110221112 in words is "one trillion, two hundred twenty billion, one hundred ten million, two hundred twenty-one thousand, one hundred twelve".