1211012102223 has 48 divisors (see below), whose sum is σ = 2181092449536. Its totient is φ = 629033109120.

The previous prime is 1211012102207. The next prime is 1211012102291. The reversal of 1211012102223 is 3222012101121.

It is not a de Polignac number, because 1211012102223 - 2⁴ = 1211012102207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1211012102196 and 1211012102205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211012102623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7142115 + ... + 7309707.

It is an arithmetic number, because the mean of its divisors is an integer number (45439426032).

Almost surely, 2^{1211012102223} is an apocalyptic number.

1211012102223 is a deficient number, since it is larger than the sum of its proper divisors (970080347313).

1211012102223 is a wasteful number, since it uses less digits than its factorization.

1211012102223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178044 (or 178041 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 1211012102223 its reverse (3222012101121), we get a palindrome (4433024203344).

The spelling of 1211012102223 in words is "one trillion, two hundred eleven billion, twelve million, one hundred two thousand, two hundred twenty-three".