220401233223234 has 128 divisors (see below), whose sum is σ = 538593951006720. Its totient is φ = 58725747662400.

The previous prime is 220401233223221. The next prime is 220401233223263. The reversal of 220401233223234 is 432322332104022.

It is a junction number, because it is equal to n+sod(n) for n = 220401233223195 and 220401233223204.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 33406189 + ... + 39455999.

It is an arithmetic number, because the mean of its divisors is an integer number (4207765242240).

Almost surely, 2^{220401233223234} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220401233223234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269296975503360).

220401233223234 is an abundant number, since it is smaller than the sum of its proper divisors (318192717783486).

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

220401233223234 is a wasteful number, since it uses less digits than its factorization.

220401233223234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6050556.

The product of its (nonzero) digits is 82944, while the sum is 33.

Adding to 220401233223234 its reverse (432322332104022), we get a palindrome (652723565327256).

The spelling of 220401233223234 in words is "two hundred twenty trillion, four hundred one billion, two hundred thirty-three million, two hundred twenty-three thousand, two hundred thirty-four".