1211426221134 has 16 divisors (see below), whose sum is σ = 2423112768000. Its totient is φ = 403765352760.

The previous prime is 1211426221111. The next prime is 1211426221139. The reversal of 1211426221134 is 4311226241121.

It is a super-3 number, since 3×1211426221134³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211426221139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10786384 + ... + 10898115.

It is an arithmetic number, because the mean of its divisors is an integer number (151444548000).

Almost surely, 2^{1211426221134} is an apocalyptic number.

1211426221134 is an abundant number, since it is smaller than the sum of its proper divisors (1211686546866).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1211426221134 is a wasteful number, since it uses less digits than its factorization.

1211426221134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21693815.

The product of its digits is 4608, while the sum is 30.

The spelling of 1211426221134 in words is "one trillion, two hundred eleven billion, four hundred twenty-six million, two hundred twenty-one thousand, one hundred thirty-four".