1220511112422 has 16 divisors (see below), whose sum is σ = 2789739685632. Its totient is φ = 348717460680.

The previous prime is 1220511112409. The next prime is 1220511112441. The reversal of 1220511112422 is 2242111150221.

It is a junction number, because it is equal to n+sod(n) for n = 1220511112392 and 1220511112401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14529894154 + ... + 14529894237.

It is an arithmetic number, because the mean of its divisors is an integer number (174358730352).

Almost surely, 2^{1220511112422} is an apocalyptic number.

1220511112422 is an abundant number, since it is smaller than the sum of its proper divisors (1569228573210).

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

1220511112422 is a wasteful number, since it uses less digits than its factorization.

1220511112422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29059788403.

The product of its (nonzero) digits is 640, while the sum is 24.

Adding to 1220511112422 its reverse (2242111150221), we get a palindrome (3462622262643).

The spelling of 1220511112422 in words is "one trillion, two hundred twenty billion, five hundred eleven million, one hundred twelve thousand, four hundred twenty-two".