1223211403415 has 4 divisors (see below), whose sum is σ = 1467853684104. Its totient is φ = 978569122728.

The previous prime is 1223211403409. The next prime is 1223211403441. The reversal of 1223211403415 is 5143041123221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1223211403415 - 2¹⁴ = 1223211387031 is a prime.

It is a super-2 number, since 2×1223211403415² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122321140337 + ... + 122321140346.

It is an arithmetic number, because the mean of its divisors is an integer number (366963421026).

Almost surely, 2^{1223211403415} is an apocalyptic number.

1223211403415 is a deficient number, since it is larger than the sum of its proper divisors (244642280689).

1223211403415 is an equidigital number, since it uses as much as digits as its factorization.

1223211403415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244642280688.

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 1223211403415 its reverse (5143041123221), we get a palindrome (6366252526636).

The spelling of 1223211403415 in words is "one trillion, two hundred twenty-three billion, two hundred eleven million, four hundred three thousand, four hundred fifteen".