1220222313113 has 4 divisors (see below), whose sum is σ = 1223547169920. Its totient is φ = 1216897456308.

The previous prime is 1220222313109. The next prime is 1220222313151. The reversal of 1220222313113 is 3113132220221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1220222313113 - 2² = 1220222313109 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220222313103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1662427853 + ... + 1662428586.

It is an arithmetic number, because the mean of its divisors is an integer number (305886792480).

Almost surely, 2^{1220222313113} is an apocalyptic number.

It is an amenable number.

1220222313113 is a deficient number, since it is larger than the sum of its proper divisors (3324856807).

1220222313113 is an equidigital number, since it uses as much as digits as its factorization.

1220222313113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3324856806.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1220222313113 its reverse (3113132220221), we get a palindrome (4333354533334).

The spelling of 1220222313113 in words is "one trillion, two hundred twenty billion, two hundred twenty-two million, three hundred thirteen thousand, one hundred thirteen".