1220430101 has 8 divisors (see below), whose sum is σ = 1333146144. Its totient is φ = 1108008720.

The previous prime is 1220430083. The next prime is 1220430109. The reversal of 1220430101 is 1010340221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1220430101 - 2⁶ = 1220430037 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220430109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64955 + ... + 81608.

It is an arithmetic number, because the mean of its divisors is an integer number (166643268).

Almost surely, 2^1220430101 is an apocalyptic number.

1220430101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1220430101 is a deficient number, since it is larger than the sum of its proper divisors (112716043).

1220430101 is a wasteful number, since it uses less digits than its factorization.

1220430101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147331.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1220430101 is about 34934.6547285071. The cubic root of 1220430101 is about 1068.6552825285.

Adding to 1220430101 its reverse (1010340221), we get a palindrome (2230770322).

The spelling of 1220430101 in words is "one billion, two hundred twenty million, four hundred thirty thousand, one hundred one".