213201121014 has 72 divisors (see below), whose sum is σ = 537834843000. Its totient is φ = 60860080512.

The previous prime is 213201121013. The next prime is 213201121031. The reversal of 213201121014 is 410121102312.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213201121013) 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 35 ways as a sum of consecutive naturals, for example, 882862 + ... + 1098110.

It is an arithmetic number, because the mean of its divisors is an integer number (7469928375).

Almost surely, 2^213201121014 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213201121014, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268917421500).

213201121014 is an abundant number, since it is smaller than the sum of its proper divisors (324633721986).

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

213201121014 is a wasteful number, since it uses less digits than its factorization.

213201121014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216394 (or 216384 counting only the distinct ones).

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

Adding to 213201121014 its reverse (410121102312), we get a palindrome (623322223326).

The spelling of 213201121014 in words is "two hundred thirteen billion, two hundred one million, one hundred twenty-one thousand, fourteen".