1210021230 has 128 divisors (see below), whose sum is σ = 3297646080. Its totient is φ = 281469440.

The previous prime is 1210021207. The next prime is 1210021243. The reversal of 1210021230 is 321200121.

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 2172112 + ... + 2172668.

It is an arithmetic number, because the mean of its divisors is an integer number (25762860).

Almost surely, 2^1210021230 is an apocalyptic number.

1210021230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1210021230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1648823040).

1210021230 is an abundant number, since it is smaller than the sum of its proper divisors (2087624850).

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

1210021230 is a wasteful number, since it uses less digits than its factorization.

1210021230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1210021230 is about 34785.3594203078. The cubic root of 1210021230 is about 1065.6084688887.

Adding to 1210021230 its reverse (321200121), we get a palindrome (1531221351).

The spelling of 1210021230 in words is "one billion, two hundred ten million, twenty-one thousand, two hundred thirty".