1220100231113 has 8 divisors (see below), whose sum is σ = 1240119782016. Its totient is φ = 1200081258000.

The previous prime is 1220100231109. The next prime is 1220100231167. The reversal of 1220100231113 is 3111320010221.

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

It is a cyclic number.

It is not a de Polignac number, because 1220100231113 - 2² = 1220100231109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1220100231091 and 1220100231100.

It is not an unprimeable number, because it can be changed into a prime (1220100231173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6939338 + ... + 7112988.

It is an arithmetic number, because the mean of its divisors is an integer number (155014972752).

Almost surely, 2^{1220100231113} is an apocalyptic number.

It is an amenable number.

1220100231113 is a deficient number, since it is larger than the sum of its proper divisors (20019550903).

1220100231113 is a wasteful number, since it uses less digits than its factorization.

1220100231113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288895.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1220100231113 its reverse (3111320010221), we get a palindrome (4331420241334).

The spelling of 1220100231113 in words is "one trillion, two hundred twenty billion, one hundred million, two hundred thirty-one thousand, one hundred thirteen".