1211012330223 has 32 divisors (see below), whose sum is σ = 1711738651392. Its totient is φ = 760511980800.

The previous prime is 1211012330189. The next prime is 1211012330239. The reversal of 1211012330223 is 3220332101121.

It is not a de Polignac number, because 1211012330223 - 2¹⁶ = 1211012264687 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1211012330223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211012330263) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 419461 + ... + 1611822.

It is an arithmetic number, because the mean of its divisors is an integer number (53491832856).

Almost surely, 2^{1211012330223} is an apocalyptic number.

1211012330223 is a deficient number, since it is larger than the sum of its proper divisors (500726321169).

1211012330223 is a wasteful number, since it uses less digits than its factorization.

1211012330223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2031495.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1211012330223 its reverse (3220332101121), we get a palindrome (4431344431344).

The spelling of 1211012330223 in words is "one trillion, two hundred eleven billion, twelve million, three hundred thirty thousand, two hundred twenty-three".