1220322420402 has 16 divisors (see below), whose sum is σ = 2464809642432. Its totient is φ = 402746673200.

The previous prime is 1220322420337. The next prime is 1220322420431. The reversal of 1220322420402 is 2040242230221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1006866078 + ... + 1006867289.

It is an arithmetic number, because the mean of its divisors is an integer number (154050602652).

Almost surely, 2^{1220322420402} is an apocalyptic number.

1220322420402 is an abundant number, since it is smaller than the sum of its proper divisors (1244487222030).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1220322420402 is a wasteful number, since it uses less digits than its factorization.

1220322420402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2013733473.

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 1220322420402 its reverse (2040242230221), we get a palindrome (3260564650623).

The spelling of 1220322420402 in words is "one trillion, two hundred twenty billion, three hundred twenty-two million, four hundred twenty thousand, four hundred two".