1220453056450 has 12 divisors (see below), whose sum is σ = 2270042685090. Its totient is φ = 488181222560.

The previous prime is 1220453056447. The next prime is 1220453056469. The reversal of 1220453056450 is 546503540221.

It can be written as a sum of positive squares in 3 ways, for example, as 1118820254049 + 101632802401 = 1057743^2 + 318799^2 .

It is a super-3 number, since 3×1220453056450³ (a number of 37 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12204530515 + ... + 12204530614.

Almost surely, 2^{1220453056450} is an apocalyptic number.

1220453056450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220453056450 is a deficient number, since it is larger than the sum of its proper divisors (1049589628640).

1220453056450 is a wasteful number, since it uses less digits than its factorization.

1220453056450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24409061141 (or 24409061136 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 37.

Adding to 1220453056450 its reverse (546503540221), we get a palindrome (1766956596671).

The spelling of 1220453056450 in words is "one trillion, two hundred twenty billion, four hundred fifty-three million, fifty-six thousand, four hundred fifty".