1220211110013 has 32 divisors (see below), whose sum is σ = 1919620792320. Its totient is φ = 674866520640.

The previous prime is 1220211110009. The next prime is 1220211110029. The reversal of 1220211110013 is 3100111120221.

It is not a de Polignac number, because 1220211110013 - 2² = 1220211110009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1220211109974 and 1220211110001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220211110213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3962623 + ... + 4259436.

It is an arithmetic number, because the mean of its divisors is an integer number (59988149760).

Almost surely, 2^{1220211110013} is an apocalyptic number.

It is an amenable number.

1220211110013 is a deficient number, since it is larger than the sum of its proper divisors (699409682307).

1220211110013 is a wasteful number, since it uses less digits than its factorization.

1220211110013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8222297.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1220211110013 its reverse (3100111120221), we get a palindrome (4320322230234).

The spelling of 1220211110013 in words is "one trillion, two hundred twenty billion, two hundred eleven million, one hundred ten thousand, thirteen".