1230002221 has 16 divisors (see below), whose sum is σ = 1527439360. Its totient is φ = 966576240.

The previous prime is 1230002219. The next prime is 1230002233. The reversal of 1230002221 is 1222000321.

It is not a de Polignac number, because 1230002221 - 2¹ = 1230002219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230002321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145041 + ... + 153286.

It is an arithmetic number, because the mean of its divisors is an integer number (95464960).

Almost surely, 2^1230002221 is an apocalyptic number.

It is an amenable number.

1230002221 is a deficient number, since it is larger than the sum of its proper divisors (297437139).

1230002221 is a wasteful number, since it uses less digits than its factorization.

1230002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298384.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1230002221 is about 35071.3874975029. The cubic root of 1230002221 is about 1071.4419145877.

Adding to 1230002221 its reverse (1222000321), we get a palindrome (2452002542).

The spelling of 1230002221 in words is "one billion, two hundred thirty million, two thousand, two hundred twenty-one".