1211002230 has 64 divisors (see below), whose sum is σ = 3004401600. Its totient is φ = 312159744.

The previous prime is 1211002181. The next prime is 1211002291. The reversal of 1211002230 is 322001121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 170796 + ... + 177744.

It is an arithmetic number, because the mean of its divisors is an integer number (46943775).

Almost surely, 2^1211002230 is an apocalyptic number.

1211002230 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 1211002230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1502200800).

1211002230 is an abundant number, since it is smaller than the sum of its proper divisors (1793399370).

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

1211002230 is a wasteful number, since it uses less digits than its factorization.

1211002230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7153.

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

The square root of 1211002230 is about 34799.4573233549. The cubic root of 1211002230 is about 1065.8963645353.

Adding to 1211002230 its reverse (322001121), we get a palindrome (1533003351).

The spelling of 1211002230 in words is "one billion, two hundred eleven million, two thousand, two hundred thirty".