221302122042 has 8 divisors (see below), whose sum is σ = 442604244096. Its totient is φ = 73767374012.

The previous prime is 221302122037. The next prime is 221302122043. The reversal of 221302122042 is 240221203122.

It is a sphenic number, since it is the product of 3 distinct primes.

221302122042 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (221302122043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18441843498 + ... + 18441843509.

It is an arithmetic number, because the mean of its divisors is an integer number (55325530512).

Almost surely, 2^221302122042 is an apocalyptic number.

221302122042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

221302122042 is a wasteful number, since it uses less digits than its factorization.

221302122042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36883687012.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 221302122042 its reverse (240221203122), we get a palindrome (461523325164).

The spelling of 221302122042 in words is "two hundred twenty-one billion, three hundred two million, one hundred twenty-two thousand, forty-two".