1220443255052 has 24 divisors (see below), whose sum is σ = 2446181300640. Its totient is φ = 521912511360.

The previous prime is 1220443255007. The next prime is 1220443255081. The reversal of 1220443255052 is 2505523440221.

It is a happy number.

It is a super-4 number, since 4×1220443255052⁴ (a number of 49 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

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, 47261777 + ... + 47287592.

It is an arithmetic number, because the mean of its divisors is an integer number (101924220860).

Almost surely, 2^{1220443255052} is an apocalyptic number.

It is an amenable number.

1220443255052 is an abundant number, since it is smaller than the sum of its proper divisors (1225738045588).

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

1220443255052 is a wasteful number, since it uses less digits than its factorization.

1220443255052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94549841 (or 94549839 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 35.

Adding to 1220443255052 its reverse (2505523440221), we get a palindrome (3725966695273).

The spelling of 1220443255052 in words is "one trillion, two hundred twenty billion, four hundred forty-three million, two hundred fifty-five thousand, fifty-two".