1211021122330 has 16 divisors (see below), whose sum is σ = 2179907155944. Its totient is φ = 484393085440.

The previous prime is 1211021122327. The next prime is 1211021122343. The reversal of 1211021122330 is 332211201121.

It can be written as a sum of positive squares in 4 ways, for example, as 1091132752329 + 119888370001 = 1044573^2 + 346249^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1211021122298 and 1211021122307.

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, 1586611 + ... + 2222470.

Almost surely, 2^{1211021122330} is an apocalyptic number.

1211021122330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211021122330 is a deficient number, since it is larger than the sum of its proper divisors (968886033614).

1211021122330 is a wasteful number, since it uses less digits than its factorization.

1211021122330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3840881.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1211021122330 its reverse (332211201121), we get a palindrome (1543232323451).

The spelling of 1211021122330 in words is "one trillion, two hundred eleven billion, twenty-one million, one hundred twenty-two thousand, three hundred thirty".