1220210440444 has 96 divisors (see below), whose sum is σ = 2309179622400. Its totient is φ = 562142592000.

The previous prime is 1220210440409. The next prime is 1220210440453. The reversal of 1220210440444 is 4440440120221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 218633734 + ... + 218639314.

It is an arithmetic number, because the mean of its divisors is an integer number (24053954400).

Almost surely, 2^{1220210440444} is an apocalyptic number.

It is an amenable number.

1220210440444 is a deficient number, since it is larger than the sum of its proper divisors (1088969181956).

1220210440444 is a wasteful number, since it uses less digits than its factorization.

1220210440444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6059 (or 6057 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 1220210440444 its reverse (4440440120221), we get a palindrome (5660650560665).

The spelling of 1220210440444 in words is "one trillion, two hundred twenty billion, two hundred ten million, four hundred forty thousand, four hundred forty-four".