220400042242 has 16 divisors (see below), whose sum is σ = 341277004800. Its totient is φ = 106641299520.

The previous prime is 220400042231. The next prime is 220400042243. The reversal of 220400042242 is 242240004022.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (220400042243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2408359 + ... + 2498197.

It is an arithmetic number, because the mean of its divisors is an integer number (21329812800).

Almost surely, 2^220400042242 is an apocalyptic number.

220400042242 is a deficient number, since it is larger than the sum of its proper divisors (120876962558).

220400042242 is a wasteful number, since it uses less digits than its factorization.

220400042242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129441.

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 220400042242 its reverse (242240004022), we get a palindrome (462640046264).

The spelling of 220400042242 in words is "two hundred twenty billion, four hundred million, forty-two thousand, two hundred forty-two".