1211022230 has 16 divisors (see below), whose sum is σ = 2378007504. Its totient is φ = 440371680.

The previous prime is 1211022229. The next prime is 1211022271. The reversal of 1211022230 is 322201121.

It is a happy number.

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, 5504537 + ... + 5504756.

It is an arithmetic number, because the mean of its divisors is an integer number (148625469).

Almost surely, 2^1211022230 is an apocalyptic number.

1211022230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211022230 is a deficient number, since it is larger than the sum of its proper divisors (1166985274).

1211022230 is a wasteful number, since it uses less digits than its factorization.

1211022230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11009311.

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

The square root of 1211022230 is about 34799.7446829715. The cubic root of 1211022230 is about 1065.9022323500.

Adding to 1211022230 its reverse (322201121), we get a palindrome (1533223351).

The spelling of 1211022230 in words is "one billion, two hundred eleven million, twenty-two thousand, two hundred thirty".