211421204034 has 16 divisors (see below), whose sum is σ = 437423181120. Its totient is φ = 68043605840.

The previous prime is 211421204023. The next prime is 211421204117. The reversal of 211421204034 is 430402124112.

211421204034 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 211421203995 and 211421204013.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 607532022 + ... + 607532369.

It is an arithmetic number, because the mean of its divisors is an integer number (27338948820).

Almost surely, 2^211421204034 is an apocalyptic number.

211421204034 is an abundant number, since it is smaller than the sum of its proper divisors (226001977086).

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

211421204034 is a wasteful number, since it uses less digits than its factorization.

211421204034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1215064425.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 211421204034 its reverse (430402124112), we get a palindrome (641823328146).

The spelling of 211421204034 in words is "two hundred eleven billion, four hundred twenty-one million, two hundred four thousand, thirty-four".