213040402222120 has 128 divisors (see below), whose sum is σ = 541049204966400. Its totient is φ = 74784026419200.

The previous prime is 213040402222103. The next prime is 213040402222121. The reversal of 213040402222120 is 21222204040312.

It is not an unprimeable number, because it can be changed into a prime (213040402222121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67449400 + ... + 70537240.

It is an arithmetic number, because the mean of its divisors is an integer number (4226946913800).

Almost surely, 2^{213040402222120} is an apocalyptic number.

213040402222120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213040402222120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270524602483200).

213040402222120 is an abundant number, since it is smaller than the sum of its proper divisors (328008802744280).

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

213040402222120 is a wasteful number, since it uses less digits than its factorization.

213040402222120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3093299 (or 3093295 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 213040402222120 its reverse (21222204040312), we get a palindrome (234262606262432).

The spelling of 213040402222120 in words is "two hundred thirteen trillion, forty billion, four hundred two million, two hundred twenty-two thousand, one hundred twenty".