1211122234 has 16 divisors (see below), whose sum is σ = 2087812800. Its totient is φ = 516151584.

The previous prime is 1211122207. The next prime is 1211122261. The reversal of 1211122234 is 4322211121.

It is an interprime number because it is at equal distance from previous prime (1211122207) and next prime (1211122261).

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, 239139 + ... + 244150.

It is an arithmetic number, because the mean of its divisors is an integer number (130488300).

Almost surely, 2^1211122234 is an apocalyptic number.

1211122234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1211122234 is a deficient number, since it is larger than the sum of its proper divisors (876690566).

1211122234 is a wasteful number, since it uses less digits than its factorization.

1211122234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483477.

The product of its digits is 192, while the sum is 19.

The square root of 1211122234 is about 34801.1815029318. The cubic root of 1211122234 is about 1065.9315716278.

Adding to 1211122234 its reverse (4322211121), we get a palindrome (5533333355).

The spelling of 1211122234 in words is "one billion, two hundred eleven million, one hundred twenty-two thousand, two hundred thirty-four".