1211223000013 has 16 divisors (see below), whose sum is σ = 1314044919936. Its totient is φ = 1109797018560.

The previous prime is 1211222999953. The next prime is 1211223000047. The reversal of 1211223000013 is 3100003221121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1211223000013 is a prime.

It is a super-2 number, since 2×1211223000013² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211223007013) 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, 1330248 + ... + 2047438.

It is an arithmetic number, because the mean of its divisors is an integer number (82127807496).

Almost surely, 2^{1211223000013} is an apocalyptic number.

1211223000013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1211223000013 is a deficient number, since it is larger than the sum of its proper divisors (102821919923).

1211223000013 is a wasteful number, since it uses less digits than its factorization.

1211223000013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718164.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1211223000013 its reverse (3100003221121), we get a palindrome (4311226221134).

The spelling of 1211223000013 in words is "one trillion, two hundred eleven billion, two hundred twenty-three million, thirteen", and thus it is an aban number.