213310201231220 has 72 divisors (see below), whose sum is σ = 472802547395808. Its totient is φ = 80827548120000.

The previous prime is 213310201231217. The next prime is 213310201231241. The reversal of 213310201231220 is 22132102013312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 100396895 + ... + 102499545.

It is an arithmetic number, because the mean of its divisors is an integer number (6566702047164).

Almost surely, 2^{213310201231220} is an apocalyptic number.

213310201231220 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 213310201231220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236401273697904).

213310201231220 is an abundant number, since it is smaller than the sum of its proper divisors (259492346164588).

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

213310201231220 is a wasteful number, since it uses less digits than its factorization.

213310201231220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2116749 (or 2116728 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 213310201231220 its reverse (22132102013312), we get a palindrome (235442303244532).

The spelling of 213310201231220 in words is "two hundred thirteen trillion, three hundred ten billion, two hundred one million, two hundred thirty-one thousand, two hundred twenty".