213277451226 has 64 divisors (see below), whose sum is σ = 509460019200. Its totient is φ = 58198383936.

The previous prime is 213277451221. The next prime is 213277451227. The reversal of 213277451226 is 622154772312.

213277451226 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (213277451221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 469080 + ... + 804108.

It is an arithmetic number, because the mean of its divisors is an integer number (7960312800).

Almost surely, 2^213277451226 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213277451226, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254730009600).

213277451226 is an abundant number, since it is smaller than the sum of its proper divisors (296182567974).

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

213277451226 is a wasteful number, since it uses less digits than its factorization.

213277451226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335723.

The product of its digits is 282240, while the sum is 42.

The spelling of 213277451226 in words is "two hundred thirteen billion, two hundred seventy-seven million, four hundred fifty-one thousand, two hundred twenty-six".