1220442350554 has 24 divisors (see below), whose sum is σ = 2129698700928. Its totient is φ = 523009551960.

The previous prime is 1220442350549. The next prime is 1220442350579. The reversal of 1220442350554 is 4550532440221.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 966349 + ... + 1837039.

It is an arithmetic number, because the mean of its divisors is an integer number (88737445872).

Almost surely, 2^{1220442350554} is an apocalyptic number.

1220442350554 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1220442350554 is a deficient number, since it is larger than the sum of its proper divisors (909256350374).

1220442350554 is a wasteful number, since it uses less digits than its factorization.

1220442350554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885010 (or 885003 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 37.

Adding to 1220442350554 its reverse (4550532440221), we get a palindrome (5770974790775).

The spelling of 1220442350554 in words is "one trillion, two hundred twenty billion, four hundred forty-two million, three hundred fifty thousand, five hundred fifty-four".