1211222232230 has 64 divisors (see below), whose sum is σ = 2272685688000. Its totient is φ = 464198945280.

The previous prime is 1211222232221. The next prime is 1211222232307. The reversal of 1211222232230 is 322322221121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1211222232196 and 1211222232205.

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, 47129264 + ... + 47154956.

It is an arithmetic number, because the mean of its divisors is an integer number (35510713875).

Almost surely, 2^{1211222232230} is an apocalyptic number.

1211222232230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211222232230 is a deficient number, since it is larger than the sum of its proper divisors (1061463455770).

1211222232230 is a wasteful number, since it uses less digits than its factorization.

1211222232230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26969.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 1211222232230 its reverse (322322221121), we get a palindrome (1533544453351).

The spelling of 1211222232230 in words is "one trillion, two hundred eleven billion, two hundred twenty-two million, two hundred thirty-two thousand, two hundred thirty".