1211223313130 has 16 divisors (see below), whose sum is σ = 2226589240320. Its totient is φ = 474181041552.

The previous prime is 1211223313121. The next prime is 1211223313133. The reversal of 1211223313130 is 313133221121.

It is a super-2 number, since 2×1211223313130² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1211223313096 and 1211223313105.

It is not an unprimeable number, because it can be changed into a prime (1211223313133) 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, 1288534970 + ... + 1288535909.

It is an arithmetic number, because the mean of its divisors is an integer number (139161827520).

Almost surely, 2^{1211223313130} is an apocalyptic number.

1211223313130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211223313130 is a deficient number, since it is larger than the sum of its proper divisors (1015365927190).

1211223313130 is a wasteful number, since it uses less digits than its factorization.

1211223313130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2577070933.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 1211223313130 its reverse (313133221121), we get a palindrome (1524356534251).

The spelling of 1211223313130 in words is "one trillion, two hundred eleven billion, two hundred twenty-three million, three hundred thirteen thousand, one hundred thirty".