1220211322224 has 20 divisors (see below), whose sum is σ = 3152212582536. Its totient is φ = 406737107392.

The previous prime is 1220211322193. The next prime is 1220211322259. The reversal of 1220211322224 is 4222231120221.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 1220211322194 and 1220211322203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12710534559 + ... + 12710534654.

Almost surely, 2^{1220211322224} is an apocalyptic number.

It is an amenable number.

1220211322224 is an abundant number, since it is smaller than the sum of its proper divisors (1932001260312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1220211322224 is a wasteful number, since it uses less digits than its factorization.

1220211322224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25421069224 (or 25421069218 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 1220211322224 its reverse (4222231120221), we get a palindrome (5442442442445).

The spelling of 1220211322224 in words is "one trillion, two hundred twenty billion, two hundred eleven million, three hundred twenty-two thousand, two hundred twenty-four".