1220400042230 has 32 divisors (see below), whose sum is σ = 2315188431360. Its totient is φ = 461897082720.

The previous prime is 1220400042229. The next prime is 1220400042263. The reversal of 1220400042230 is 322400040221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3805934 + ... + 4114113.

It is an arithmetic number, because the mean of its divisors is an integer number (72349638480).

Almost surely, 2^{1220400042230} is an apocalyptic number.

1220400042230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220400042230 is a deficient number, since it is larger than the sum of its proper divisors (1094788389130).

1220400042230 is a wasteful number, since it uses less digits than its factorization.

1220400042230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7920884.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 1220400042230 its reverse (322400040221), we get a palindrome (1542800082451).

The spelling of 1220400042230 in words is "one trillion, two hundred twenty billion, four hundred million, forty-two thousand, two hundred thirty".