1220002221430 has 16 divisors (see below), whose sum is σ = 2196304664400. Its totient is φ = 487934073952.

The previous prime is 1220002221397. The next prime is 1220002221457. The reversal of 1220002221430 is 341222000221.

It is a junction number, because it is equal to n+sod(n) for n = 1220002221398 and 1220002221407.

It is a congruent number.

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, 8275105 + ... + 8421244.

It is an arithmetic number, because the mean of its divisors is an integer number (137269041525).

Almost surely, 2^{1220002221430} is an apocalyptic number.

1220002221430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220002221430 is a deficient number, since it is larger than the sum of its proper divisors (976302442970).

1220002221430 is a wasteful number, since it uses less digits than its factorization.

1220002221430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16703663.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 1220002221430 its reverse (341222000221), we get a palindrome (1561224221651).

The spelling of 1220002221430 in words is "one trillion, two hundred twenty billion, two million, two hundred twenty-one thousand, four hundred thirty".