1220100013031 has 16 divisors (see below), whose sum is σ = 1239424671744. Its totient is φ = 1200888237984.

The previous prime is 1220100012979. The next prime is 1220100013037. The reversal of 1220100013031 is 1303100010221.

It is a cyclic number.

It is not a de Polignac number, because 1220100013031 - 2³⁰ = 1219026271207 is a prime.

It is a super-2 number, since 2×1220100013031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1220100012997 and 1220100013015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220100013037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96467150 + ... + 96479796.

It is an arithmetic number, because the mean of its divisors is an integer number (77464041984).

Almost surely, 2^{1220100013031} is an apocalyptic number.

1220100013031 is a deficient number, since it is larger than the sum of its proper divisors (19324658713).

1220100013031 is a wasteful number, since it uses less digits than its factorization.

1220100013031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16990.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 1220100013031 its reverse (1303100010221), we get a palindrome (2523200023252).

The spelling of 1220100013031 in words is "one trillion, two hundred twenty billion, one hundred million, thirteen thousand, thirty-one".