1220552242442 has 48 divisors (see below), whose sum is σ = 2048330840832. Its totient is φ = 544657726080.

The previous prime is 1220552242361. The next prime is 1220552242493. The reversal of 1220552242442 is 2442422550221.

It is a super-2 number, since 2×1220552242442² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11441273 + ... + 11547459.

It is an arithmetic number, because the mean of its divisors is an integer number (42673559184).

Almost surely, 2^{1220552242442} is an apocalyptic number.

1220552242442 is a deficient number, since it is larger than the sum of its proper divisors (827778598390).

1220552242442 is a wasteful number, since it uses less digits than its factorization.

1220552242442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107343 (or 107330 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 35.

Adding to 1220552242442 its reverse (2442422550221), we get a palindrome (3662974792663).

The spelling of 1220552242442 in words is "one trillion, two hundred twenty billion, five hundred fifty-two million, two hundred forty-two thousand, four hundred forty-two".