1211330230 has 16 divisors (see below), whose sum is σ = 2378612304. Its totient is φ = 440483680.

The previous prime is 1211330221. The next prime is 1211330243. The reversal of 1211330230 is 320331121.

It is a super-2 number, since 2×1211330230² = 2934641852223705800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5505937 + ... + 5506156.

It is an arithmetic number, because the mean of its divisors is an integer number (148663269).

Almost surely, 2^1211330230 is an apocalyptic number.

1211330230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211330230 is a deficient number, since it is larger than the sum of its proper divisors (1167282074).

1211330230 is a wasteful number, since it uses less digits than its factorization.

1211330230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11012111.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1211330230 is about 34804.1697214572. The cubic root of 1211330230 is about 1065.9925885387.

Adding to 1211330230 its reverse (320331121), we get a palindrome (1531661351).

The spelling of 1211330230 in words is "one billion, two hundred eleven million, three hundred thirty thousand, two hundred thirty".