1211433221134 has 4 divisors (see below), whose sum is σ = 1817149831704. Its totient is φ = 605716610566.

The previous prime is 1211433221083. The next prime is 1211433221149. The reversal of 1211433221134 is 4311223341121.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×1211433221134³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302858305282 + ... + 302858305285.

It is an arithmetic number, because the mean of its divisors is an integer number (454287457926).

Almost surely, 2^{1211433221134} is an apocalyptic number.

1211433221134 is a deficient number, since it is larger than the sum of its proper divisors (605716610570).

1211433221134 is an equidigital number, since it uses as much as digits as its factorization.

1211433221134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605716610569.

The product of its digits is 3456, while the sum is 28.

Adding to 1211433221134 its reverse (4311223341121), we get a palindrome (5522656562255).

The spelling of 1211433221134 in words is "one trillion, two hundred eleven billion, four hundred thirty-three million, two hundred twenty-one thousand, one hundred thirty-four".