1220443405030 has 32 divisors (see below), whose sum is σ = 2226142898784. Its totient is φ = 481671526656.

The previous prime is 1220443405009. The next prime is 1220443405031. The reversal of 1220443405030 is 305043440221.

It is a happy number.

It is a super-3 number, since 3×1220443405030³ (a number of 37 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1220443405030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220443405031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 309519 + ... + 1592698.

It is an arithmetic number, because the mean of its divisors is an integer number (69566965587).

Almost surely, 2^{1220443405030} is an apocalyptic number.

1220443405030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220443405030 is a deficient number, since it is larger than the sum of its proper divisors (1005699493754).

1220443405030 is a wasteful number, since it uses less digits than its factorization.

1220443405030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1903080.

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 1220443405030 its reverse (305043440221), we get a palindrome (1525486845251).

The spelling of 1220443405030 in words is "one trillion, two hundred twenty billion, four hundred forty-three million, four hundred five thousand, thirty".