220234521342 has 64 divisors (see below), whose sum is σ = 481626362880. Its totient is φ = 66583132800.

The previous prime is 220234521319. The next prime is 220234521349. The reversal of 220234521342 is 243125432022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220234521349) 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, 64526428 + ... + 64529840.

It is an arithmetic number, because the mean of its divisors is an integer number (7525411920).

Almost surely, 2^220234521342 is an apocalyptic number.

220234521342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

220234521342 is an abundant number, since it is smaller than the sum of its proper divisors (261391841538).

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

220234521342 is a wasteful number, since it uses less digits than its factorization.

220234521342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5409.

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 220234521342 its reverse (243125432022), we get a palindrome (463359953364).

The spelling of 220234521342 in words is "two hundred twenty billion, two hundred thirty-four million, five hundred twenty-one thousand, three hundred forty-two".